Nina (Luna Schweiger) is an orphan who grew up in an orphanage. By chance, she became a witness to a vicious murder case, and the person killed was not someone else, but Nina's friend Tony (Jacob Matschenz), and Nina, who knew the truth, became the target of the murderer Becker (Heiner Lauterbach) who was eager to get rid of her. In order to protect Nina, the police arranged the veteran Max (Til Schweiger) to be her bodyguard. As an inexperienced girl, Nina was very uncomfortable with the old man with a weird temper around her, but as time went by, Max's reliability brought Nina an unprecedented sense of security, and a solid and sincere friendship was formed between Nina and Max. Unfortunately, as the two gradually approached, the danger was getting closer and closer to them.