Murder mystery with a holiday themed killer.

In the middle of the night, intruders murder his parents and load him into an SUV. He will wake up in a room that looks just like his own, except there’s no window.

Outside his door are other kids with special talents. As he learns: "you check in, but you don’t check out."

A class of junior high school students is taken to a deserted island where, as part of a ruthless authoritarian program, they are provided arms and forced to kill one another until only one survivor is left standing.

They were teenagers when they first stumbled upon the horror. Now they are grown-up men and women.

But none of them can withstand the force that has drawn them back to face the nightmare without an end, and the evil without a name.