Marco decides to visit his father who has long since left the family, but an argument leads to the latter’s tragic death. Marco leaves the scene of the crime but rents a hotel room in a nearby sea resort, as if he intended to merge with the tourists but at the same time watch as further events unfold. The case is entrusted to inspector Rinaldi who soon discovers the identity of the murderer but also realises that this was not an ordinary crime committed for personal gain. He believes that the motive for the crime must have been a trauma which has burdened Marco since his childhood. Marco doesn’t give the impression of a murderer who tries to cover up his tracks; on the contrary, he appears to be waiting for his arrest, as if this would finally bring about a catharsis of his constant state of anxiety.