Penny's trying to forget about her ex, Nash. Ever since his father was arrested as the brutal serial killer who traumatized their small town last Halloween, Penny's parents have forbidden her to have anything to do with Nash or his family. As Halloween draws near, it's hard not to think of him, and what happened, but she's trying.

That proves impossible when she goes shopping with her friends for a costume. What she finds instead is ripped straight from a horror movie: her classmate, Noah, stabbed to death on the floor behind the clothing racks.

Is a copycat killer on the loose? Fingers point towards Nate . . . but Penny knows better.