After being asked by his ex wife to take care of their daughter for one night, Guido is shocked when she seems to have disappeared from the apartment.

A young vagabond travels along the Aurelia roadway in northern Italy where he meets a woman.

A bourgeois couple, like so many others. It is clear that after a few years of marriage a bit of boredom may come, and it is their case: especially boredom in bed.