A middle-aged chef in a luxurious restaurant reveals to his shrink his double personality: He is an impeccable family man who loves his wife and son and at the same time a sexually hungry person who seeks pleasure at any time with any woman.
Among the women that the sex-addicted chef fucks is his wife's married sister, a.k.a. his sister-in-law. At 17:50, she comes to his house to tell his wife (who isn't home at that moment) about his philandering ways, which she heard from other females, and him groping her ass last night at a party. She receives a call from her husband, telling her to pick up their son, so she tells the chef that she will come back later to talk to his wife. When he touches her to try and stop her, she slaps him. In response, he pushes her against a wall and starts to fuck her. It turns out that's what she wants after all, so they fuck against a wall in a standing position.