On a river bank lies a dead body with a scar near his kidneys. His identity cannot be determined. Luc Conrad cannot concentrate on solving this unusual death because duty calls: extremely wealthy textile manufacturer Max Lauener has died. Luc discovers a scar on his body, also near his kidneys. The daughter of the deceased Mr Lauener begins an investigation on her own  - despite warnings from Luc...

The vintner's house belonging to the wine-growing Lüscher family is in flames. An Australian guest who slept there, manages to escape at the last minute before the house explodes due to a gas bottle stored there. During the explosion family head Peter Lüscher dies. The cause of the fire is quickly discovered. It was arson. A whole line of people come in question for the attack. Was it son Christia..

At the Oxen Inn, Philipino cook Joy Weniger lies in a pool of blood - apparently she slipped on eggs and died as a result of her injury. Two rival innkeepers mourn the dead person: Freddy, who owns the posh Deer's Inn and Alfons, owner of the Oxen Inn, who supposedly had an affair with Joy Weniger. After a turbulent night Alfons is also found dead. The prime suspect is Joy's son Urs, who despised..

Beautiful Celine Zumthor runs through the rooms of Hallwyl Castle as if chased by fiends. The next morning she is found hanged. Celine led a sad life - as Luc and Anna-Maria soon discover. She suffered from hallucinations, identified herself with the fate of a woman from a saga from the Middle Ages who was unfaithful to her husband and was locked up for the rest of her life by the angered lord of..

Butcher Ruedi Latz is hanging upside down in a boiling vat. The dead man's face has been boiled beyond recognition. The obvious primary suspect is the German doctor Norbert Fassbender, who was shamelessly courting the fetching butcher's wife Elsbeth and unscrupulously eliminated her husband Ruedi. The murderous doctor has disappeared without a trace. Because Anna-Maria is busy with federal agent P..

Police commissioner Anna-Maria Giovanoli and federal agent Pedro Lambert are on the tail of the manipulators in their investigation of the illegal organ trafficking. In order to put them behind bars they need one final piece of evidence: a volunteer has to enter the lion's den and donate a kidney in order to catch the culprits in flagranti. Of all people, the widow of the victim in episode one dec..