Gianni is a serial seducer but his life is destined to change when he meets Chiara, a beautiful woman who has had an accident and is paraplegic.

Time jump to 1939 with teenager Max and his friends as they try to navigate Mussolini’s Rome and find Max’s missing brother.

1960s, the city of Clerville. The forthcoming visit of heiress Eva Kant, who’ll be bringing a famous pink diamond with her, catches the attention of Diabolik, the infallible and elusive…