Il monastero

When Olga Roli returns to her birthplace after a nervous breakdown, it quickly becomes much worse for her. Anonymous, threatening phone calls to deal with her as Olga O, her stage name from her time working in a local strip club, soon followed by a near miss with a murderous motorcyclist.

Kreola arrives in Santa Domingo to join her photographer husband Andy. Although Andy is initially jealous of Marco, who is in town looking for his missing girlfriend who did not return from Santa Domingo with her coworkers after a girls getaway. When Kreola and Andy site the missing girl Iris in the company of their gruff, dominating sea captain Leon, Andy suggests Kreola distract him so that Marco has a chance of getting Iris back. Kreola scoffs at this but eventually does fall under Leon's spell. Andy's writer friend Jo Ann blames the island atmosphere for the tendency for puritanical Westerners to reject their inhibitions. When Andy and Marco cannot free their women from Leon's influence, things get drastic.

Gianni is a political man with a good career waiting for him. Angela is his wife and she fakes an assault and a rape in a cinema. Eva is Gianni's lover and Angela's friend. Gianni and Eva decide to use the pretext of the assault to kill Angela. Later on Angela is blackmailed by a man who was present at her act. In the background there are Rosy, her maid always present, and a puzzling man who appears and disappears and makes strange phone calls.

In the city of Rome, Mirko Reggiani is not only a university student who can't happily graduate from the university but also an amateur and only one detective of MARLOV & CO. One day he meets a beautiful fair lady in a department store and falls immediately in love with her, but his best female friend hinders him. Soon, in a rather strange way, Mirko meets the lady, who is actually an unhappy housewife named Vera Grimaldi, again. Unfortunately it is not a happy reunion; both Mirko and Vera are deeply and almost independently trapped in a twisted web of vicious crime...