While shooting a documentary on the suspicious disappearances within the homeless community, a filmmaker and his crew go missing while uncovering a terrifying and vicious secret below the city's surface.

In a small backwater town, a trio of sadistic killers terrorizes the community as they continue a cross-country murder spree that's lasted over a year. As the police frantically begin a manhunt to stop them, the slayers encounter a mortal terror far beyond anything they could imagine. A dreadful game of survival ensues, where only the deadliest prevail.