La Lettre

A well-bred, lovely, spiritual, sad young woman marries an attentive physician who loves her. She feels affection but no love. Soon after, without design, she falls in love with Pedro Abrunhosa, a poet and performance artist. He also loves her. She keeps her distance from him, confessing her love to a friend who is a nun and, later, to her husband. Hunger for her love and jealousy consume him; she attends him as he wastes away. (imdb)