A hit man named Kai flies into Bangkok, gets a gun, and orders a cab. He offers a professional female driver big money to be his all-night driver. But when she realizes Kai is committing brutal murders at each stop, it's too late to walk away. Meanwhile, an offbeat police detective races to decode the string of slayings before more blood is spilled.

五个刚进入泰国着名学府圣乔治学校入读的新生，在一次参观活动发现在1952年有六名旧生离奇自杀，其中包括一名外貌英俊、成绩优异的王子，校方却故意隐瞒事实。他们为求得知真相，组成王子学会，更不惜以碟仙与王子接触。可是，展开调查行动的同时，1952年的恐怖事件又再次重现于圣乔治学校……