Romanian authorities raid a home and discover approximately 60 videotapes documenting the graphic murders of a single serial killer in disturbing detail. Law enforcement teams spend months analyzing the footage for identifying information — the killer's name, the victims' identities, any lead on his location. One tape stands out: recorded by a victim named Florentina, it inadvertently captures her attacker's face during her desperate attempt to escape. It may be the breakthrough the investigation needs.