FBI探员马刚（马丁•劳伦斯 Martin Lawrence 饰）聪明能干，屡破奇案，而他的破案法宝就是他那高超的伪装绝技，无论什么人，他都自信能扮得惟妙惟肖。新的案子摆在了马刚面前，乔治亚州一个银行抢劫犯身怀巨款逃亡了，马刚奉命前往缉拿，唯一的线索就是抢劫犯的女友雪梨（尼娅•朗 Nia Long 饰）。为了接近雪梨，马刚施展他的变身特技，化身成了雪梨久未碰头的姑母，一个超过两百磅的“老妈子”。马刚的特技堪称一绝，经过化身易容，成功接近了雪梨。然而相处久了，马刚却发现自己爱上了可能有份参与收藏赃款的雪梨，更要命的是，真正的姑母登场了。...
A Jewel thief named Frank Stone is a very deeply disturbed, anti social, milquetoast who finds no joy or humor in anything - until he awakens from a deep coma....
A private investigator is forced into a dangerous alliance with a killer. They will try to uncover a quiet town's grisly criminal underbelly and clear the name of her mentor, who is implicated in the crimes....
A private investigator is forced into a dangerous alliance with a killer. They will try to uncover a quiet town's grisly criminal underbelly and clear the name of her mentor, who is implicated in the crimes....
