When My Husband Kisses (1950)

Original title: Cuando besa mi marido

A high society woman discovers a fiery romantic letter in a raincoat pocket seemingly written by a rumba dancer to the woman’s doctor husband. He tries to cover by saying that the letter is addressed to a more conservative friend of his, leading to rumours of his friend’s (supposed) incredible passion becoming intriguing to the local women, even the Doctor’s own jealous wife.