Comedy of Innocence (2000)

abandoned to himself by his parents, little camille asks his mother ariane to accompany him to his real mother, on the other side of paris. here he meets isabella, who two years earlier lost her son drowned in the seine. believing the story of camille, who seems to know isabella's house very well, ariane accepts that the woman moves into her own apartment, while her brother serge, a psychiatrist, tries to understand the mysterious reason for this split personality of the child.