Elise (10) and Charlie (12) spend their holidays by the beach, role playing a game set by Charlie where a seductive lord holds his princess prisoner. Their game comes to life when Elise gets fascinated by a young man in a nearby villa but Charlie gets jealous. She warns Elise : at night, the man reportedly tosses bodies into the sea. Fascinated, Elise lets down her friend for the first time and decides to uncover the secret by herself.