黉舍里的风云人物劳拉，擅长酬酢，酷好脸书。某日，劳拉与她在脸书上熟悉的女孩“玛丽娜”产生辩说，怒而取关，玛丽娜自杀。从这时起，劳拉的密友开端离奇惨死。

Nine friends, all harboring a dark secret, go camping in the woods. After a wild night of partying, they wake up with SUICIDE BOMBS strapped to their chests, all with varying times on their countdown clocks. They decide …