

A secret agent possesses a ring that makes him invisible for a short time, once every 10 hours. He is in pursuit of an evil criminal mastermind but, at the same time, must evade an enemy agent who also wants the ring.
Production
Invisibility effects are gloriously janky.
Costume
Ira von Fürstenberg's wardrobe deserves its own credit.

Director
Alberto Lattuada
Trivia, insights & behind the scenes
Part of the 1960s Eurospy boom trying to cash in on Bond mania with fraction of the budget and double the sleaze. Italy alone produced dozens of these knockoffs.
Director Alberto Lattuada was a respected neorealist filmmaker who apparently needed to pay rent very badly in 1967. The tagline's 'reckless as her body' energy suggests marketing took over completely.