Build a movie plot around this: Who does the killer blackmail for his silence? of the affair
A:
Over the opening credits a man is with two women, all of them nude and on a bed fooling around, while a camera is taking photographs. After the credits, a professor is speaking with his students, and Jane (Suzy Kendall) an American exchange student attending college in Rome, Italy speaks with the professor after class. Stefano (Roberto Bisacco) offer's Jane's friend, Dani (Tina Aumont), a ride home, but she turns him down. She later tells Jane and the man seem to be always following her.Later, Flo (Patricia Adiutori), another one of Jane's friends, is with Sean, making out in a parked car at an overpass. Sean sees someone wearing a ski mask watching them. Sean gets out of the car and runs after the person. Flo gets out of the car, turns on the headlights and looks for Sean. When the headlights are turned off, Flo heads back to the car where the man with the ski mask stabs her in the chest.The next day, Dani shows Carol (Cristina Airoldi) the news of Flo's death. Classes are canceled for the day and Jane goes to see Professor Franz (John Richardson). The two of them have a drink at a local bar and Franz invites Jane to a concert. Across town, Stefano picks up a prostitute, but seems reluctant to do anything with her. When she demands that Stefano pay, regardless of his actions, Stefano hits and chokes the woman. She leaves behind an unsettled Stefano.The next day, Dani watches Carol being taken away by two bikers. They gloved killer is driving around, passing Dani who looks right at the driver. At a hippy party, Carol is kissing the two men and smoking dope, but when one of them tries to further the interaction, she puts her joint out on his chest. Carol leaves and ends up in a marshy area. She sees the masked killer standing a short distance away in the fog and runs away, but the killer catches up with her and knocks her down to the ground. Carol is strangled with a scarf and her head is pushed underwater. When Carol is dead, the killer gets a knife and cuts into Carol's eyes.The next day, the police show the...