A sex congress takes place in a hotel, and couples are secretely filmed in a Slivers way by the "scientists".

The story of a bandoneon-loving musician who works as a detective in a hotel and the story of a chemist in love with a widowed woman.

A television director decides to make a show about the invasion of transvestites in Mar del Plata. He commissions one of his editors, Jorge Trolombati, who must infiltrate and impersonate one.