International man of mystery Diabolik and his sensuous lover Eva Kant pull off heist after heist, all while European cops led by Inspector Ginko and envious mobsters led by Ralph Valmont are closing in on them.

• Dino de Laurentiis Cinematografica
• Marianne Productions
• John Phillip Law
• Marisa Mell
• Michel Piccoli
• Adolfo Celi
• Claudio Gora
• Mario Donen
• Renzo Palmer
• Caterina Boratto