Five carpoolers travel in a motorhome to reach a common destination. Night falls, and to avoid a dead animal carcass, they crash into a tree. When they come to their senses, they find themselves in the middle of nowhere. The road they were traveling on has disappeared and there is only a dense, impenetrable forest and a wooden house in the middle of a clearing, which they discover is the home of a spine-chilling cult.

Martino's sister, Caterina, can't work anymore for health reasons and he replaces her as cleaner for dr. Guglielmo Gioia, a mental coach. While the doctor leaves, Martino pretends to be his assistant.