When the swindler La Spada and his accomplice José come out of jail in Madrid, they decide to pull a really great swindle: nothing less than to discover and sell a third picture of the famous Goya's Maya. They engage the renowed Scorcelletti who can imitate any picture and who lives in Rome....
Duclos's son, a worldly gangster, is compromised in a case of which he is innocent. The proof of this innocence is in the hands of a "competitor", the Marquis de Chemantel de Beauvoiron, a misguided aristocrat. He asked for $ 10 million to cede the document. Duclos will then imagine Chemantel...
A television broadcast launches a proclamation for amateurs: "If you know how to speak, you will know how to sing". The award mirage lured many person, with ambitions or financial problems, to enroll in the competition.
Teo, a young theatre stand in, is offered a faustian pact by the devil: if he pushes a button a Chinese mandarin will die and leave his money to him. Teo seems to be tempted by the offer...
Bored with her bourgeois life, the young Maria Variani, daughter of a professor, meets Bruno, who is part of an amateur jazz group, and allows herself to be persuaded to join the band that plays during the radio program "The microphone is yours".
Jupiter decides to spend his 3,000th birthday on earth amongst the humans. Mercury suggests he take the place of a newly married politician so he can have some fun with the man's new wife - but nothing goes to plan!