After the death of his mother, Elisa (Claire Borotra) is responsible for custody of her sister Audrey (Penelope Leveque), a troubled teen and something he hardly knows. Following the last will of her mother, both go to Mont Saint Michel, where the two grew up, to spread his ashes. The second night of stay, and after a flood, Audrey disappears while the mayor's daughter, which suggests a voluntary escape, but Elisa does not think so, so it will not stop until its trace sister.
as Elisa Parreaux
as Romain Fresnoy
as Audrey Parneaux
as Yann Dole
as Dominique Vernon
as Agnès Parreaux
as Fabienne Dole
as Laure Vernon
as Adjudant Laïd
as Frère Jude
as Le Notaire
as L'adjoint de Gendarmerie
as Le juge
as L'infirmière
as Le médecin
as Le chauffeur
