When Astrid, a professional therapist who is struggling to find meaningful friendships, starts having an affair with her patient Celine's husband, it creates additional strain on an already difficult relationship with her son, David who disapproves of his mothers taste in men. Meanwhile Celine, who is a retired prostitute content with living a domesticated life, befriends David when he tries run away from home by booking flight through her travel agency. However, when David discloses the affair to Celine, she must decide how to deal with the betrayal and lies.