A dangerous cult disbanded years ago. Now they're back, and they want revenge. Alex Mercer spends his spare time operating a blog for missing children-a pastime inspired by his daughter's recent disappearance. Another relative goes missing. As he follows up on leads coming into his site, the police department is inundated with a rash of missing persons cases. The incidents seem unrelated until evidence ties the cases to a dilapidated apartment building known for its unsavory clientele. Suspicion falls on a disbanded cult. The same cult Alex's own relatives had managed to escape from and bring...