Everyone has a secret. Twins Sarah and Ga├½lle near 25; for ten years, Sarah has been a fundamentalist Carmelite in a Brazilian convent, and Ga├½lle has been in prison for a heinous crime. Sarah comes to the attention of Fr. Joachim, a priest and physician; he can find no cause for her debilitating abdominal pain. When Sarah and he are transferred to Paris, Joachim looks for Ga├½lle, now on probation and finding no respite from society’s approbation. An enterprising reporter is digging into Ga├½lle’s life, the mother superior of Sarah’s convent hovers over her, and Joachim investigates the phenomenon of twin’s symmetry. Is there any release from the past?