Who Shot Otto Mueller?

After the murder, Otto's youngest son Oliver, who was once a talented musician, is brought in for questioning.

Oskar, Otto's eldest son and former athlete, has waited a long time for some promises to be fulfilled.

Marleen, Otto's young mistress, reveals some interesting facts from the past. Including a gripping story about Otto and a strange story about a bet.

Anneken's brutal habit becomes known to the detectives; Agnes discovers a new fact about Gabriel; a family therapist, shares her memories of young Otto and how it all started.

Anneken, Oskar's housewife, brings unexpected new leads into the case. The relationship between the detectives takes a turn.

Oliver's seemingly carefree and charming wife, Monika, recently received an expensive gift from Otto, much to everyone's surprise; time is running out, and more and more is at stake.

Reeli, Oliver's first wife, makes a surprising statement. The more the past comes to light, the harder it becomes for the detectives to work.

Robert, Otto's gifted grandson, gives an insight into his childhood and new view of Otto; when the pressure becomes almost unbearable for the detectives, the surprises become even greater.