Jerry Paulsen is on his way to a training course when the brakes on his company car fail and he ends up in a ditch. Fortunately, he gets away with a few minor scrapes. Beissl discovers Jerry's sports bag full of drugs in the car and has to investigate. Jerry vehemently denies having anything to do with the drugs and suspects that someone is trying to frame him. Could everyone have been so wrong about Jerry?

Johanna's mistrust also grows when she realizes that Jerry has not always been honest with her. He tries his best to prove his innocence. In the process, he and Johanna find themselves in mortal danger and a mysterious death occurs.

The residents of Berchtesgaden are amazed – dozens of Santa Clauses are populating their town center in the middle of summer. Two men take advantage of the commotion to rob a jewelry store. Shortly afterwards, a dead Santa Claus is found. Is it one of the robbers? Who knew about the flash mob?

Only when the detectives discover that an employee of the jeweler is having an extramarital affair do they come one step closer to solving this curious case.