The disappearance of a young woman puts two forensic police officers on the trail of a serial killer. Their fears are confirmed by the discovery of several corpses, what follows is a long hunt across Paris.

The story of a woman that remained distracted for a long time from her life, from the passions that made her feel alive. The importance of true love is compared with the material value of diamonds. Only one truly lasts forever. She's got to find the thing that values most for her, the thing that gives psychical stability and real happiness again to her life.