Set in the 1930's, this gangster spoof tells the comic tale of a Johnny Kelly (Michael Keaton) who is forced into a life of crime in order to pay for his ailing mother's medical treatment. Attempting to keep his straight life and his life of crime separate Johnny takes the name Dangerously and is soon a powerful mobster flush with women and riches. The Dangerously name is about...。的哥石大伟(句号 饰)做梦都想发财。一天,他行驰途中因观看旁边一白衣女子与人吵架,注意力不集中,发生车祸,被男孩彭麟钊(金琳淳 饰)赖上,在医院里,他发现彭手中有装大量现金的背包,贪心大起,从其手中哄骗过来,然后送彭麟钊回了家。彭的父母不在,家中只有两个奇怪的男人,做贼心虚的石大伟恐事情败露,溜之大吉,不料被人跟踪。惊魂未定的大伟重返彭家打探,彭麟钊向他叙述了下午被两陌生男人带走的过程,大伟疑那两人是绑匪,遂将彭接回自己家中。大伟的女儿小桃(杨紫 饰)高考落榜,心情沮丧,见爸爸带一陌生男孩回家,心中生疑。夜里,大伟打开背包,里面竟然有三十万现金,不料就在这时,歹徒潜入......。