The plot follows a respectable bourgeois housewife who chooses the love for her black German Shepherd over her relationship with her husband.

Months before the due date, Cristina's hopes are shattered when, stopping at a gas station, she is attacked by a black German Shepherd.

Marcos, a successful presenter of a TV variety show, is a conservative Catholic sympathetic to right wing politics.

While her husband is occupied at work, Cristina finds in her dog an outlet to the love she could not give to the child she lost.

One day Marcos arrives home finding his wife in bed with her wedding gown on the side spotting marks of Bruno's paws all over the dress implying that Cristina had had sex with the dog.

Appalled, Marcos asks for advice from Father Abelardo, the family's priest, who tells him to be firm and immediately surrender the dog.

However, he is distracted as he takes on a new political career in defense of his conservative views which he feels are threatened under the new democratic Spain.

Resolute, Cristina packs her bags, leaves Marcos, retrieves Bruno, and goes to live happily at the mountain house with her pet.