Intruso (1993)

Sinopsis: In childhood and youth, the three were "the inseparables." Luisa married Ángel, then two years later, she left him to marry Ramiro. After ten years, Ángel reappears, back from South America, broke and ill. Luisa is overcome with sentimentality and, over Ramiro's objections, takes Ángel into their house. Ángel is bitter, he and Ramiro have shifted from best friends to enemies. Luisa wants to be in love with both. Ramiro hopes he can wait out Ángel's declining health, and Luisa wants to heal Ángel through force of will. What is Ángel's plan? Observing the roiling emotions are Luisa and Ramiro's precocious young children. Who's in danger here?