At Tattersall Prison, a max-lock for the baddest of the bad, sleepless nights are the norm... until a fireball from the sky turns the night shift into a nightmare -- trapping guards and cons on the inside, cops on the outside, and escapees in-between... all of them threatened by a hideous alien invader which needs nice, warm human bodies in which to incubate. From the outside, it looks like a replay of Waco, but from the inside, it's more like Dante's...