Thirty-something Jonna, successful ad executive with cozy architect husband Niklas and two small children, leads a double life. She is constantly on the lookout for quick casual sex. When she starts seeing handsome and rich young yacht owner Aleksi, things really start going awry in her personal and professional life. While her artist sister Sanna provides her with suitable alibis, TV sex therapist Nora tries to help her come to terms with her sex addiction.