故事发生在一座小镇的医院内。一名警官将一位伤员送进医院后，一群身份不明的神秘人包围了医院。宗教？黑帮？恐怖组织？在知晓这群人的身份之前，一场大屠杀已经展开。

　　Sheila Hood is an ex-cop whose marriage is on the rocks. Rather than confronting her husband about an affair, she hides surveillance cameras in her