High school graduate Max Höfel arrives at the Fuchs & Kilali detective agency distraught: his girlfriend Leonie has been run over by a car and the police believe it was a hit-and-run accident. Max, on the other hand, believes it was murder and hires the two detectives to find the culprit. Leonie used to work in Max's uncle Lukas Bender's amusement arcade. Anne and Youssef find out that dirty mafia money is laundered there. When a large sum of money is found in Leonie's estate, Inspector Eisner is also convinced that a violent crime has been committed. Did Leonie want to expose her employer - is that why she had to die? Max's mother Marina protects her brother Lukas. He would never be capable of murder! A deep rift runs through the Höfel family, behind whose façade Anne and Youssef have to look in order to finally solve the case.