Five years ago, high school senior Helena Kelly disappeared from her backyard in Dexby, Connecticut, never to be heard from again. Her family was left without any answers -- without any idea who killed Helena, or why. So when eighteen-year-old Seneca Frazier sees a desperate post on the Case Not Closed message board, she knows it's time to change that. Helena's high-profile disappearance is the one that originally got Seneca addicted to true...