La pequeña enemiga (1956)

By all appearances, a distinguished Doctor seemingly has it all-a successful medical practice, a beautiful a trusting wife, and children who worship him .Despite all this, he begins an adulterous love affair with a younger woman who he met at his daughter's birthday party, Predictably, his selfish actions have consequences, as he struggles to not-so-successfully balance the demands of his career, his family and his mistress.