Roberto, a drummer in a rock band, keeps receiving weird phone calls and being followed by a mysterious man. One night he manages to catch up with his persecutor and tries to get him to talk but in the ensuing struggle he accidentally stabs him. He runs away, but he understands his troubles have just begun when the following day he receives an envelope with photos of him killing the man. Someone is killing all his friends and trying to frame him for the murders... Written by Giancarlo Cairella vertigo@imdb.com

Franco Arno is a blind man that lives with his young niece and makes a living writing crossword puzzles. One night, while walking on the street, he overhears a weird conversation between two man sitting in a car parked in front of a medical institute where genetic experiments are performed. The same night someone breaks in the institute and knocks out a guard. Arno decides to investigate with the help of reporter Carlo Giordani. Written by Giancarlo Cairella vertigo@imdb.com