While an admiral's son is hunted by secret agents, his sister plays his part on a warship.

A look at the urban society of the seventies. The story of Marta a young and pretty girl, who leaves her husband to search for her true identity. She doesn't quite know what she wants, but at least she knows what she's escaping from. Soon she encounters financial difficulties and finds herself involved with shady characters, a situation that leads to a mysterious murder. The net closes around her.

Artur is in Lisbon for his holidays, wonders aimlessly, and is picked up by Rui, a young man who is into marketing and advertising. Joana is in Lisbon for holidays, but also trying to escape from a mysterious, dark passion. Artur and Joana come together, find common roots in their rural background.