Pilar Yagüe

A wealthy couple is hampered by having no children. The sister-in-law feels attracted to the husband and marries his brother. Tension raises between them when the wife feels ill.

Mario is a famous concert pianist affected by an obsessive neurosis. He leaves Paris, cancels his contracts and returns to Spain to devote himself only to music. On his way to Spain he meets a young widow, who Mario saves when she tries to commit suicide by throwing herself from a train.