Eight London couples try to deal with their relationships in different ways. Their tryst with love makes them discover how complicated relationships can be.
Captain Etienne Navarre is a man on whose shoulders lies a cruel curse. Punished for loving each other, Navarre must become a wolf by night whilst his lover, Lady Isabeau, takes the form of a hawk by day. Together, with the thief Philippe Gaston, they must try to overthrow the corrupt Bishop and in doing so break the spell.
Aspiring comic Rupert Pupkin attempts to achieve success in show business by stalking his idol, a late night talk-show host who craves his own privacy.
Danny Ocean and his gang attempt to rob the five biggest casinos in Las Vegas in one night.
A man entranced by his dreams and imagination is lovestruck with a French woman and feels he can show her his world.
The Marquise de Saint-Ange wants to marry her niece Nicole, but the young girl, put off by the chosen suitor, flees with her friend Jacques.
After hiding his loot and getting thrown in jail, brooding outlaw Ruby befriends Quentin, a dim-witted and garrulous giant. After Quentin botches a solo escape attempt, they make a break together. Unable to shake the clumsy Quentin, Ruby is forced to take him along as he pursues his former partners in crime to avenge the death of the woman he loved and get to the money.
Interpol Inspector Zenigata begins a world-wide hunt for the infamous thief Lupin The 3rd. But together, they face a powerful enemy and form the Lupin team in response. The Lupin team then faces the challenge of retrieving the "Crimson Heart of Cleopatra" locked away in a fort like safe. The treasure is thought to allow its owner to control the world.
There is a big charity function at the house of Mrs. Cheyney and a lot of society is present. With her rich husband, deceased, rich old Lord Elton and playboy Lord Arthur Dilling are both very interested in the mysterious Fay. Invited to the house of Mrs. Webley, Fay is again the center of attention for Arthur and Elton with her leaning towards stuffy old Elton. When Arthur sees Charles, Fay's Butler, lurking in the gardens, he remembers that Charles was a thief caught in Monte Carlo and he figures that Fay may be more interested in the pearls of Mrs. Webley, which she is. After Fay takes the pearls, but before she can toss them out the window, she is caught by Arthur who is very disappointed in how things are turning out.
Fantômas is a man of many disguises. He uses maquillage as a weapon. He can impersonate anyone using an array of masks and can create endless confusion by constantly changing his appearance.