The gangsters Scholl and van Ammen, who have just broken out of the' Bruchsal prison, car jack 'a driver in a motorway parking lot.'  'Scholl was convicted of robbery and grievous bodily' harm, while 'Van Ammen was convicted of murder.  As they listen
to the radio talk about their very own descriptions and jail break that just happened, Scholl wants to drive to Karlsruhe;  because van Ammen just does not want to go there, so contrary to the agreement, the two gangsters start to fight over it and
Scholl grabs Van Ammen' and  'the steering wheel goes awry.  The car' veers 'off the lane and later lands upside down in the ditch.  Scholl climbs out of the car, slightly dazed, takes the gun and coat from the motionless Van Ammen and disappears
without bothering' 'his accomplice.  

Shortly afterwards, Scholl takes a driver named Marina hostage in order to continue' with 'his escape.  He' is able to 'be taken' by the police 'shortly before' reaching 'Karlsruhe, but he takes the money from the woman and threatens her' life 'in the
event that she informs the police or anyone else about the incident.  'KHK (crime senior commissioner) Lutz and his colleagues appear at the scene of the accident; the driver from whom the car, jacket and coat were stolen is also there.  Van Ammen is
dead.  The' remains 'of the coat that Scholl left behind in the car with him is also discovered.  Scholl also took the driver's papers with him.  Lutz is able to reconstruct the facts and suspects that Scholl did not want to leave the motorway in the
direction of Frankfurt, but rather at this point in order to change direction to the' south, regarding his escape.
'Scholl' manages to reach 'an oil refinery near Karlsruhe and sneaks onto the site.  Lutz is there too, who wants to speak to the head of the security service there, Mr. Wöhrle.  Wöhrle and Lutz know each other from before, as Wöhrle used to be
with the police.  He had to quit the police service because, in fact, he was too violent with this guy Scholl when he was a suspect awhile back.'  

So, 'Lutz asks Wöhrle if he knew that Scholl had fled.  At the time, he threatened to finish Wöhrle as soon as he was out again.  Lutz fears that he could have in mind carrying-out the threat now, but Wöhrle is not afraid.  Scholl takes part in a
tour of the refinery premises, still unknown to Wöhrle and his security.  Lutz's superior, police senior board member Mangold, is convinced that Scholl has fled to France.  Senior commissioner Lutz, on the other hand, is convinced that Scholl is still
in Germany and wants to take revenge on Wöhrle.  In addition, Scholl does not speak a word of French, so that he cannot work or live in France.  Mr. Mangold does not listen to Lutz and concentrates the search on the French border.  

Scholl is meanwhile looking for a restaurant, but he only finds one that is now closed.  The landlord Witkowsky lets him in anyway and' even 'cooks for him.  Witkowsky thinks he has recognized Scholl as an escaping convict, but does not let on. 
Scholl notices that Witkowsky is remarkably well dressed for a landlord and has an expensive watch.  Scholl wants to pay, but Witkowsky invites him 'not to'.  

Meanwhile Lutz, at home finishes looking at nightly news on TV and then calls the' security chief Wöhrle and informs him that the woman car driver who Scholl had forced to take with him has reported as a witness.  This confirms Lutz's hunch that Scholl
wants to confront Wöhrle, and he urges his former colleague to be careful.

The next morning however, Scholl was found dead in front of a police station in downtown Karlsruhe.  Apparently he was run over, but' there are no other clues at to what else occurred, 'so Lutz assumes that the body must have been run over on purpose
and then' later 'deposited in front of the station 'at a different time.  Police senior board member' Mangold reprimanded Lutz for classifying the obvious traffic accident of a violent criminal as murder and thus neglecting other cases.  Lutz still
follows the trail with his assistant Bechthold.  He goes to the area' of the refinery 'where he last suspected' that 'Scholl' would' be, 'and both of them go to the few restaurants in the area because he must have eaten something.  However, the
investigations still' remain in 'the dark.
Lutz goes to Wöhrle again, and tells him that he is convinced that Scholl was murdered.  He couldn't have been stupid enough to walk around in front of a police station.  Lutz routinely asks Wöhrle whether Scholl had found him;  Wöhrle denies this'.
  He says he didn't speak with him, see him or have any contact with Scholl.  Lutz assures him that he believes him.  However, there was sand on Scholl's shoes that can only be found at the refinery.  So it doesn't look good for Wöhrle' after 'Lutz
took a soil sample at the refinery. 

Meanwhile, Lutz's police assistant Bechthold is sitting in the car and starts turning on the radio and can hear voices from the refinery's laboratory that are apparently bugged.'  This is very strange.  'Bechthold informs Lutz about his discovery.  So
now, Lutz is looking for the manager of the refinery, Dr. Stockinger and' Lutz tries to 'demonstrate to him that the laboratory and possibly also the executive offices are bugged.  

Dr. Stockinger meets with Lutz in a' supposedly 'listening bug proof restaurant, but says that he cannot imagine the competition using such means.  Besides, they don't have very many secrets.  Commissioner Haferkamp's police assistant Mr. Kreutzer is
brought to the meeting by (KHK) Lutz.  He has been a specialist in radio technology since the second world war and so he screened the laboratory for'exact locations and removal of the bugs.  

Meanwhile, Lutz has another conversation with' Wöhrle, who is saying his alibi is not watertight.  He was alone that evening and theoretically could have left the' site, gone over 'the fence and past the' gatekeeper.  Yet, Lutz 'still continues to
believe in Wöhrle's innocence, because why would he 'have deposited the body in front of the police headquarters?

Lutz notices an unknown man outside and' thinks about 'following him.  But, they learn from the porter that' this is Dr. Benz, 'a chemist employed there, 'who is acting like' he 'must have forgotten something' or he looked lost.  

Meanwhile, the police assistant Mr. Kreutzer discovers' listening 'bugs.  The bugs would have an operating time of 50 to 60 hours, which means he must have' had 'regular access to the refinery.  So, Lutz asks Wöhrle about Benz; he is a bachelor, seems
to be wealthy, “inherited”, dresses elegantly, drives expensive cars, affords expensive vacation trips and previously worked at the headquarters in Hamburg.

Police board member Mangold is once again upset about Lutz's direction of  investigating and cannot see any connection between the' "accident" involving Scholl and 'the industrial espionage case.  Lutz' goes with the guess 'that Benz installed the bugs
and that Scholl knew about industrial espionage.  Obviously, Scholl wanted to earn money, maybe trying to locate and remove them, so Benz had to get Scholl out of the way.  Lutz travels to his colleague commissioner Paul Trimmel in Hamburg to do
research on Benz's past.  Trimmel knows however, that to report only one' offense 'because of drunkenness in traffic? As a supposed criminal record for Dr. Benz?  It just isn't significant enough for Lutz, so' that 'does not go any further. 

However, it is strange that Benz was transferred from Hamburg to Karlsruhe in the same position, i.e. without having received a promotion' in pay grade or duties 'for the change of location.

Meanwhile, assistants Bechthold and Kreutzer are looking for the receiving station for the micro-transmitters.  Kreutzer thinks that a motorboat can also be used as a mobile' station' because, ''i.e. "you could escape when things get tough".  Lutz
seeks out a specialist in bed bugs (miniature listening/transmitting devices) whom Trimmel recommended and who shows him the latest technology' (up to 1973 - in german) in this area 'and shows him the consequences of industrial espionage.  The man also
gives commissioner Lutz some tips on how to better monitor his suspect with technical help.

Back in Karlsruhe, Lutz and Kreutzer bring the transmitter he brought with him from Hamburg to Dr. Benz'.  So, Lutz 'speaks to Wöhrle, but he cannot help him with the lives of other employees at the refinery because' his work is mostly 'for an external
company.  Lutz informs him that he still lists him as a suspect in the death of Scholl.  Benz nervously phoned his girlfriend, whom he urgently wanted to speak to.  Then, he leaves the' refinery, but Lutz 'and Kreutzer are on his heels.  

So then, Dr. Benz drives to' a 'nuclear research center and meets his girlfriend there in the' break room.  He doesn't want to be seen with his girlfriend for a while, because the police suspect him of industrial espionage.  His girlfriend doesn't
understand because she doesn't consider her research to be a secret.  She always passed the documents about her results on to Benz without hesitation and had never thought that he could make any money' from 'them.  She seems to be starting to suspect
that something is wrong. 

Lutz asks a woman from the cafeteria staff who this woman is?  It' turns out that she 'was the employee of the research' center, named 'Ms. Melchinger.  Dr. Benz and Ms. Melchinger get into an argument, but she finally agrees to forward her documents
to him because he needs them for his research.  Police commissioner Lutz 'seeks out the managing director of the nuclear research center; but he trusts his employee Melchinger.

Dr. Benz visits the restaurant landlord Mr. Witkowsky, whom he obviously knows well and with whom he seems to be working.  Lutz and Kreutzer, however, followed Miss Melchinger because she is driving Benz's car while Benz is taking a taxi.  On
instructions from Benz, Melchinger drives to Witkowsky, whom she does not know.  Mr. Witkowsky asks her to hand over the requested documents, but the matter seems strange to her.  Witkowsky and Melchinger' then leave and 'come from Witkowsky's
restaurant' property 'and drive away in his car.  Lutz recognizes Witkowsky, but cannot assign him.  He follows' these 'two.  Lutz' slowly 'remembers that Witkowsky is the host of the Rhine' Terraces establishment. 

Lutz and Kreutzer follow them to a' place 'on the Rhine river; Lutz wants' 'access, there'.  by car 'Witkowsky flees, but after a short chase steers his car into the Rhine river.  Lutz' manages to free 'Miss Melchinger, whom Witkowsky' 'locked in the
establishment.  Benz is 'there too,' and he claims that Witkowsky killed Scholl. 'He saw it, himself.  Lutz arrests them both, Benz assures his girlfriend that he has nothing to do with industrial espionage' yet, Ms. 'Melchinger states that she only
gave him the information for' some habilitation effort for him or something?  Assistant 'Bechthold informs police commissioner Lutz that Witkowsky is probably dead and that divers are being 'requested' 'at the scene.  'Benz receives a phone call that
Lutz partially overhears!

So, 'Lutz goes to' security chief Wöhrle.  'Lutz heard that it was he who called' Benz.  Thus, it 'is proven that Wöhrle was involved in industrial espionage, but he has nothing to do with the murder of Scholl.  

At the time, Lutz had observed how Wöhrle had warned Benz.  Wöhrle must be the main culprit, because Benz also had a bug in his phone. 

So, Benz had nothing to do with the bugs, everyone had put them up.  Wöhrle does not deny any of the allegations; he also admits that Benz' actually 'worked for him and his accomplices.  He is unmoved because there is no complaint about industrial
espionage.  Lutz takes Wöhrle to the police station (presidium), where Mr. Mangold is quite angry about Lutz's investigative work.  Lutz, on the other hand, presents Wöhrle as the boss of the gang, who, however, cannot be harmed much because there is
no complaint for industrial espionage.  Board member Mangold then informed Lutz that a complaint' actually 'had been received, whereupon Lutz said that this was the first time that he had heard positive news from Manigold.

SOURCE: (updated)
from Wikipedia Germany, Wikipedia the free encyclopedia
-- https://de.zxc.wiki/wiki/Tatort_(Fernsehreihe)#Liste_der_Tatort-Folgen
(see: 'Main article : List of crime scene episodes')

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