Adeline Spencer is lucky to be alive after an accident at a freediving competition. To help her daughter relax and unwind, her mother takes her on a trip to a tropical island. Addie will find beaches with white sand and azure water, a cave with an underground lake, the ruins of an old jungle house overgrown with vines... and meeting an amazing guy. It seems that even the island itself is happy about the new guest: the birds shout Addie’s name, the flowers change color when she approaches. This place is like a magical dream, but the girl cannot get rid of anxiety. Addie thinks the little girl she saw in the woods is a ghost. And that ghosts are not the worst secret of this island...