Police investigator Bettina Käser is investigating the murder of Gottfried Rösli in Langenthal. His daughter Käthi Güdel found the old farmer dead at the Lochmatthof farm, shot with a pellet gun. Everything points to Käthi's husband Sämi having lost his temper: he had been in a nasty argument with his father-in-law. But Bettina Käser has her doubts about Sämi's guilt. Together with her Zurich-based assistant Roberto Egger, the investigator sets out to find the perpetrator. However, the revelation of the truth holds a surprise in store for Bettina Käser herself.
| Actor | Role |
|---|---|
 Bettina StuckyBettina Käser | Bettina Käser |
 Leonardo NigroRenato Egger | Renato Egger |
| JJasmin ClamorKäthi Güdel | Käthi Güdel |
| MMarkus MerzSämi Güdel | Sämi Güdel |
 Martin SchickAschi Rösli | Aschi Rösli |
 Peter WyssbrodGottfried Rösli | Gottfried Rösli |
 Max GertschPeter Käser | Peter Käser |
 Andreas MattiPolizeichef | Polizeichef |
 Pascal UlliUntersuchungsrichter | Untersuchungsrichter |
 Martin RapoldJürg | Jürg |
| PPeter ZumsteinKnecht | Knecht |