Gianni (Boldi) is an ad agent from Milan vacationing in the mountains. Inside a cave he stumbles upon a cavewoman (Grimaldi) frozen intact. Of course she retained all of her young beauty and immediately Gianni is attracted to her, but after he begins thinking she is best left behind she follows him around creating havoc in his normal life. Gianni believes he can transform her into a beautiful modern day woman.
Carabinieri's lieutenant Duilio Cordelli is in charge of investigating fake banknotes traffic. He discovers that a 60 billion lira bank robbery is linked with his case. Things get more complicated when the main suspected, Lorenzini, is killed. Moreover, Cordelli villa is blown up and the evidence points to the conclusion the whole case could be solved only by flying to London.
Four stories intertwine during summer at Saint-Tropez: a couple tries to recapture their spark; a girl falls for a male stripper she met at a night club; a famous pianist tries to prevent his ex-wife from re-marrying; an unsuspecting suicidal man gives a gorgeous female Mafia hitman a run for her money.
