Thehigh-profilecaseofserialkillerLudovicChevalierhasjustgonetotrial,andKelly-Anneisobsessed.Whenrealityblurswithhermorbidfantasies,shegoesdownadarkpathtoseekthefinalpieceofthepuzzle:themissingvideoofamurdered13-year-oldgirl,towhomKelly-Annebearsadisturbingresemblance.