Avril is a novice in a convent of "Baptistine" sisters, a monastic order which was officially dissolved by the end of the nineteenth century but that is kept alive by Mère Marie Joseph, the sadistic superior. While Avril is on retreat, locked in for a fortnight in a chapel prior to taking her vows, Soeur Bernadette, a sympathetic sister, discloses a secret to her: she has a twin brother...
Sophie Quinton
as Avril
Miou-Miou
as Sœur Bernadette
Nicolas Duvauchelle
as Pierre
Clément Sibony
as David
Richaud Valls
as Jim
Geneviève Casile
as Mère Marie-Joseph
Monique Mélinand
as Sœur Céleste
Anna Mihalcea
as Flora
Claude Duty
as Père Jean Diard
Mathilde Mignot
as Avril enfant
Frédéric Quiring
as le père adoptif de David
Marie Vinoy
as la mère adoptive de David
