Vincent has an extraordinary ability: his strength and reflexes increase tenfold when in contact with water. To make full use of this gift, he settles in a region with many lakes and rivers, which is isolated enough to allow him to live a peaceful life. Then, one day, during an aquatic escapade, he encounters Lucie.

Tom is a forty-year-old ornithologist. Discreet and lonely, spends his days observing birds, or talking about them. His life changes when he is confronted with a supernatural phenomenon, an invisible obstacle that pulls him back when he tries to cross it. This phenomenon, which recurs randomly, will simply change his life.