In a remote town nestled in the French Pyrenees, a bizarre and gruesome discovery is made. The headless body of a horse is found hanging from a frozen cliff at the top of a cable car line. Commandant Martin Servaz is assigned to investigate the strange crime, which soon takes a darker turn. The case becomes deeply personal and more disturbing when DNA evidence connects the scene to Julian Hirtmann, an infamous serial killer locked away in a high-security psychiatric hospital. As a new series of murders begins, Servaz must determine if a copycat is on the loose or if Hirtmann is somehow orchestrating the terror from behind bars. The show has ended, but sign up for a reminder just in case it returns.