An artist sells his soul to the mysterious M in order to get revenge on the people who killed his girlfriend. Soon, he realises everything has a price, and he is transformed into a horned demon with a passion for killing.

Annabel is a successful businesswoman with a wealthy husband. At a reception in her villa she meets a woman, a member of the catering staff who has been hired for the evening. This woman is none other than her own daughter Chiara, whom she had left over thirty years ago. Chiara was just eight years old at the time. She now approaches her mother with an unusual request: to spend ten days together with her.