Mantid

Two teenage couples traveling across the backwoods of Texas searching for urban legends of serial killers end up as prisoners of a bizarre and sadistic backwater family of serial killers.

The murderous, backwoods Firefly family take to the road to escape the vengeful Sheriff Wydell, who is not afraid of being as ruthless as his target.

After a 4 a.m. knock at the door and haunting voices, Kristen McKay and James Hoyt’s remote getaway becomes a psychological night of terror as three masked strangers invade. Now they must go far beyond what they thought themselves capable of if they hope to survive.

When average, law-abiding citizens suddenly turn to a life of hedonistic behavior and violent crime, Detective Tom Beck is tasked with helping young FBI agent Lloyd Gallagher determine the cause.