As day breaks, Rosa is summoned to a remote crime scene in the Bernese Jura. In Thallingen, three people have been found shot to death, two in a car, the third nearby on the forest path. The head of the local police station, Susann Walter and her deputy Leo Mott have already identified the victims: they are Artan Kabashi, son of Albanian immigrants who run a pizzeria in the village, his colleague,..

The sinister Porto is coming under pressure himself. Korday, the guy pulling all the strings, wants his money back and is concerned that the investigation into the triple murder in Thallingen will shine a light on his drugs business and expose it. In fact, Jamel Jaoui from the French drug squad is already taking an interest in Rosa's case. He has been on the trail of the blue pills for a while now..

With the discovery of Porto's body in the old circus caravan and Simon still on the run, Kägi is pushed back into the center of the investigation. Rosa launches a manhunt for the suspects. Simon's mother Laura is desperately fearful for her son, but she cannot offer Rosa any further help – she seems to be guarding a dark secret herself. Kägi, who remains suspended due to a previous..

Susann and Leo take DNA samples from all the male guests who attended the Mulliger party, in order to track down the unknown lover of murder victim, Artan Kabashi – a course of action which is met with fierce resistance from many villagers. Convinced that the Albanians are to blame for everything, a mob gathers outside the Kabashi's pizzeria. Police officer Leo manages to swap a false DNA sa..

Kägi shows Rosa the newspaper article with the photo of the barman Toni, who the witness knew as Oliver Hartmann. Eight years previously, he had attacked a prostitute and then went into hiding in Thallingen under the name Toni Amberg. It was precisely at this time that Jeanette was raped. Kägi is convinced that this is the man who raped his sister. When the two detectives confront the ba..

Frank Mulliger, heir to the family sawmill, admits to having been completely drunk on the night of the murders, but at the time they happened he was at the party – even Susann can confirm that. During the examination of Frank's car, Simon confirms again that this was the sound he heard. Kägi orders the team to look into anyone else who might own the same model of car. Susann is listeni..