Abused teen Helen Remus (Amy Davidson) flees her trailer-park home to escape her stepfather and lands in the clutches of elusive serial killer Gary Ridgway (John Pielmeier). But Det. Dave Reichert (Tom Cavanagh) vows to flush out his vicious quarry. Putting his life on the line, Reichert embarks on a 20-year manhunt in which interviews with convicted killer Ted Bundy (James Marsters) lead to a startling breakthrough.