La noche de los cien pájaros (1976)

Enrique suffers from an accused inferiority complex because he did not finish his university degree and married a humble butcher named Juana. After a dinner with his former classmates, Enrique meets Mónica, a painter, daughter of his old high school teacher, and they have a passionate romance. Despite how much Juana loves him, Enrique will begin to think about taking drastic measures to change his life.