A young fairy of the living waters, named Ondine, marries a knight errant named Hans. In doing so, she accepts the Ondine pact: if Hans cheats on her, she will forget him and he will die.

A young fairy of the living waters, named Ondine, marries a knight errant named Hans. In doing so, she accepts the Ondine pact: if Hans cheats on her, she will forget him and he will die. By discovering love, Ondine also discovers the world of men: infidelity, hypocrisy, jealousy. Hans meets a fantastic universe made of purity, sacrifice, love and death.