A summer's day on Lake Chiemsee: children discover the body of a man on a sailing boat. Inspector Hattinger and his colleagues from the Prien police start investigating. Shortly afterwards, a second body is found: The author Annette Kaufmann has been murdered in her vacation apartment. It is a serial murder, the perpetrator seems to know Inspector Hattinger personally and provokes him with bloody clues. There has been a fateful connection between the two murder victims for decades: Both are partly to blame for the death of a young girl who lost her life due to a doctor's blunder.
| Actor | Role |
|---|---|
 Michael FitzKommissar Hattinger | Kommissar Hattinger |
 Edgar SelgeAlbrecht Ostermeier | Albrecht Ostermeier |
 Bettina MittendorferAndrea Erhard | Andrea Erhard |
 Gerhard WittmannBamberger | Bamberger |
 Hanna PlaßLena Hattinger | Lena Hattinger |
 Michael FuithWolfgang Pichler | Wolfgang Pichler |
 Ursula KarvenAnnette Kaufmann | Annette Kaufmann |
 Max SchmidtJohnny Huber | Johnny Huber |
 Sandra BorgmannMiriam Kannengiesser | Miriam Kannengiesser |
 Daniel FriedrichDr. Schanderl | Dr. Schanderl |
 Barbara MeierEmpfangsdame | Empfangsdame |
 Gundi EllertFrau Mooshammer | Frau Mooshammer |