Eva et l'amour

Also known as Eva et l'amour sous toutes ses formes, Eva et l'amour... sous toutes ses formes

Eva is a young innocent Dutch girl who is in love with Antoine, brother of her best friend Martine. When she accidentally see her and her husband Henri having sex, they invite her to join a threesome. But Antoine comes unexpectedly and sees her betrayal. He punishes both her and his sister. To try on lovers, friends have a masquerade party.