Mads' parents are going away for the weekend. Reluctantly, his fifteen years old sister Sofie, takes Mads to the local city pool. Her task as a babysitter is turned upside down when she discovers two young boys in the pool. Her lust prevails, and she sees her chance to exploit her brother´s presence when they start playing with Mads. She asks one of the boys to put sunscreen lotion on her, and they babysit Mads while she goes to have a cigarette with her friends. Later that day, the young boys show up at Mads and Sofie´s house. Without hesitation, Sofie puts her responsibility at risk when she invites them inside and sends Mads off to buy ice cream. Her desire takes over and unintended consequences follow. Mads is left to himself.