Parasites

When Marshal and his friends make a wrong turn and end up the seedy part of town, they are attacked and held at gunpoint by a crazed gang of homeless derelicts. After his two friends are mercilessly killed by Wilco, the gangs leader, Marshal makes his getaway, on foot, naked and unarmed, with a pack of depraved transients in pursuit. With no where to go and no one to trust, every turn means he's only seconds away from capture.