Three men plan a jewelry heist abroad the Andalusia express train.

Everyday all kind of people pass through a Police Station, especially if it is downtown. Today, however, the chief of police has bought his first car and he has decided to test it with his wife going to Ostia. But first a theatrical company sent out of the theatre, last Alfredo Todini arrested while walking wearing a gown and in the mean a series of human cases, ranging from the pathetic to the funny one, get in the way of his wish.

People around Peter Crane begin dying in mysterious fashion. How is Playboy Peter involved in this? He begins having nightmares dealing with murder...His psychiatrist has no idea of what Peter is suffering from. Even the police are in danger as they start investigating the case. What is the secret of the "Magic Circle"?