An accident.

For Miss Trent and her students, what should have been a well-deserved celebration has suddenly turned into a desperate fight for survival.

There's something lurking in the forest. Hunting them. Feeding off their fear.
Nothing is what it seems. Until tonight, insanity was just a word.

Now they're going to learn its true meaning.

Tick-one by one they're being taken.

Tock-to suffer a fate worse than anything they could imagine.

Tick-screaming, pleading, praying-nothing will work.

Tock-not everyone will make it.

Tick-but one thing's for sure.

Tock-when you enter the madhouse, you'll never be the same again.