Tropes of this episode:
- Blonde, Brunette, Redhead: Agent Reyes finds out that there is a Serial Killer at large and that his pattern consists murdering women in a set of three. Each set has a blonde, a brunette and a redhead. Redheaded Agent Scully and dark-haired Reyes get trapped in an underground garage and fear they might be his next targets.
- Serial Killer: He targets women and kills them in a set of three.