American Tourist (uncredited)
A series of random suicides in Rome, Italy are attributed to a heatwave, but a young pathologist named Simona—who is working on a thesis about murders disguised as suicides—suspects otherwise. When a young girl associated with Simona's playboy father ends up dead in another apparent suicide, Simona teams up with the girl's priest brother to prove she was murdered and track down the unknown serial killer.
Lisa
The Countess Clara is in love with Andrea Valverde but agrees to marry the Count Guido when he learns that Andrew is his brother from his mother’s side. Clara partotisce a daughter, Guido leaves ensnared by chanteuse Yvonne and Andrew goes to war in Libya. Yvonne, to seize the goods of Clara makes the poison. Clara is buried but thanks to a kiss of his brother wakes up. Yvonne tried to turn the events in his favor but she is sentenced.
Airplane Passenger (uncredited)
A successful businessman goes to Italy to arrange for the return of his tycoon-father's body only to discover dad died with his mistress of long standing.
Secretary (uncredited)
A woman is fatally stabbed in bed, a prostitute is battered into oblivion and a female painter is strangled with a telephone cord. Another woman, Giulia, who is on her honeymoon, is attacked in a train carriage but the killer flees when her husband Mario comes to the rescue. In spite of his protestations to the police, Mario is accused of being the murderer. He sets out to prove his innocence by conducting his own enquiries. In the meanwhile, a woman in an insane asylum is drowned in a bath and another female victim is power-drilled to death...
