Captured by a ruthless criminal gang, Diabolik and Ginko find themselves face to face. Locked in a cell that has no way out, and convinced they are going to die, Diabolik reveals his mysterious past to the inspector. Meanwhile, Eva Kant and Altea are each desperately searching for their two loves. Will the paths of the two rivals cross at last?
Diabolik nearly gets caught in Inspector Ginko's latest trap, leaving his partner in crime Eva Kant behind in the escape. Furious, Eva offers Ginko her help in capturing the King of Terror, but the former has to face the return of an old flame of his: Altea, Duchess of Vallenberg.
A história sombria e romântica se passa na fictícia Clerville na década de 1960 e conta sobre o encontro entre o “ladrão anti-herói” Diabolik (Luca Marinelli) e a fascinante Eva Kant (Miriam Leone) — um encontro em que amor e crime se unem em uma mistura explosiva. E apenas o Inspetor Ginko (Valerio Mastandrea) parece capaz de frustrar os planos diabólicos do casal.
