Aldo is an introverted boy who loves photography and exploring caves. An earthquake strikes while he is exploring a cave, probably caused by an atomic explosion. Reaching the surface, Aldo discovers that radioactivity has destroyed any trace of human life.

A kind-hearted vagabond, Tony, being targeted by a gang when he tries to stop a kidnapping. He must turn to his friend, police Santini, and use their wits to survive.

A couple inherits a mansion, but when they move in they discover that it is haunted by the murderous spirits of people who have died there.