After she and her husband witness the savage beating of a prostitute but do nothing to stop it, Hélène (Catherine Frot) is wracked with guilt. She traces the prostitute, named Malika, to a hospital, where Malika lies comatose. Hélène soon commits herself to helping Malika recover, and in the process grows distant from her husband and son. The situation is further complicated when the men who beat Malika return to find her, intent on finishing the job they began. Soon, Hélène finds herself caught up in deadly underworld politics that she cannot begin to comprehend.