Ivón, a chorus girl, Hugo, a failed writer, and Carlos, Hugo's young son, arrive at a seaside hotel on a stormy night.
Duran and his team of the fifth group are secret agents missioned by Inspector Peña to find and capture a gang of dangerous criminals who are planning a major hit.
The film consists of a series of tightly interlinked vignettes, the most sustained of which details the story of a man and a woman who are passionately in love. Their attempts to consummate their passion are constantly thwarted, by their families, by the Church and bourgeois society in general.