Move Over, Mrs. Markham (1985)

Original title: Sé infiel y no mires con quién

Pablo and Fernando, owners of a children's book publishing company about to go bankrupt, have managed through unorthodox means to contract the country's best-selling author, Adela Mora. The evening of the official signing, Paco asks his friend to let him use his house for a love tryst while Fernando wines and dines Adela. At the same time, Paco's wife, Carmen, will be taking her lover to Rosa's house. From here on the rout begins, as Paco tries to get rid of Silvia, his secretary, and Carmen, her husband. Fernando thinks Rosa is cheating on him with Oscar, who thinks Fernando is gay and having an affair with his partner, while the soldier thinks his girlfriend is a professional...