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……。Learza, an unstoppable demon in human form, kills people with a peculiar birth mark on their hands. One of them is Maya, a deaf/mute girl that Clay is assigned to protect.。