Marianne, a young cellist discovers that her father had a mistress who is still alive. Her journey to find this mysterious woman takes her to places and people from her childhood that she thought she'd left behind forever.

Jeanne Balibar
Marianne

Bulle Ogier
Beatrice
Renaud Bécard
Étienne

Eva Truffaut
Clarisse

Pierre Léon
Adrien
Sylvain Prunenec
Michel

Circé Lethem
La jeune fille du train
Renaud Legrand
François
Valérie Crunchant
Ghislaine (young)
Irène Cavallaro
Marianne (enfant)

Raphaële Godin
La flûtiste

Nicole Colchat
Ghislaine

Guillaume Verdier
L'employé de l'hôtel
Vladimir Léon
L'homme du train
Anne Chappuis
Visiteuse