A young woman enlists in an underground game of pain endurance in the hope of winning the million dollar prize. She soon learns the real opponent is the man who's running the game, as he employs horrific methods to manipulate and defeat her.

动物园准备开放，聘请一班实习生到访实习，没想到一种神秘病毒在动物园内开始蔓延爆发，全动物园的动物因而变成噬血活尸，成了真正的尸乐园，现在园区内的幸存者除了得想办法逃出生天外，还必须阻止这群饥肠辘辘的动物活尸走出园区……