Claire (Vitry) is a chic young Parisian woman married to a somewhat older husband, Jean (Doniol-Valcroze). As the story opens, she leaves her husband playing baroque music at the piano, telling him she is off to see her sister, Solange. In reality she meets her lover, Claude (Brialy) at his apartment; after some idle chatter and love-making he tells her a story of the shriveled heads that the Jivaro Indians used to give their lovers as tokens of affection but, as she shivers in disgust, he gives her a mink instead. How will they hide it from her husband though?