Alfredo Martelli, an antiquarian, is taken to a police station without warning and interrogated by Inspector Palumbo. As the questioning unfolds, Martelli discovers that his wealthy mistress, Adalgisa De Matteis, has been murdered and he is the prime suspect.
The Assassin
A man, Alfredo Martelli, is unexpectedly arrested at his home by the police without explanation. As he's questioned at the precinct, he gradually uncovers the reason for the investigation, while flashbacks reveal intimate details about his life.