Munich. Four policemen. Matteo Lechner and Frank Bressinger, Georg Zimmermann and Iris Bülow rush after three young men who are said to have beaten up the kiosk owner Latif Kara so brutally that he is in a coma. It is unclear whether the father of three children survived - Carlo Menzinger appeared completely surprisingly in Matteo Lechner's Munich police station. Carlo wants to get married and asks his former mentor and friend to be his best man. Lechner doesn't react quite as enthusiastically as Carlo had hoped. Does it have something to do with the fact that the police officers have to release the suspects because of a missing statement? Carlo Menzinger finds his old friend very changed. And then suddenly there is a dead man who belonged to Lechner's people.
The uninhibited reunion with his former colleagues, the Munich chief inspectors Ivo Batic and Franz Leitmayr, is cordial but short. Because suddenly Carlo finds himself in the middle of their investigations. As a hotelier from Thailand, he has no influence or police competence, but his work is – almost like in the past – indispensable for the clarification of the complicated case.