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…

Alessio Rinaldi, a 25-year-old director, gets the charge from a producer to write the script of his first movie with Ubaldo Terzani, a well-known writer of horror novels. Alessio moves…