电影分为三个短片。阿盛在面包房工作，业余爱好是唱歌。某日，阿盛的小学同学丽华突然来到了店里买面包，然而丽华却并没有认出阿盛。阿盛爱上了丽华，却没有勇气向她表白心迹，于是他决定参加一场歌唱比赛，以彰显自己的真心。某日，女孩捡到了一支手机，她联系上了失主，没想到两人却聊得特别投机。终于，在失主的要求下女孩决定同他见面，那隐藏在手机背后的，究竟会是一个怎样的人呢？阿松是一名推销员，感情生活一片空白，事业亦死气沉沉没有希望。某日，他来到丽华的理发店，却目睹了一场捉奸的闹剧，丽华因为误会被卷入其中。阿松出手相救，两人逃到了天台之上。

Long out of circulation, Deep Throat Part II was conceived as a soft-core sequel to the highly successful Deep Throat. The film was written and directed by sexploitation virtuoso Joe Sarno and shot on 35mm in the New York City area in early 1973. It was released in the U. S. in early 1974 with an MPAA "R" rating and quickly disappeared; porn journalist Al Goldstien, writing in Screw, called it "the worst film I have ever seen." The existing U. S. version of the film now on DVD is bowdlerized; the Italian DVD release version contains the film's original soft-core sex scenes. There has long been an urban legend that the film was shot hardcore and that the hardcore sex scenes were "stolen" while the film was in post-production; this claim seems extremely dubious and director Joe Sarno himself has insisted in interview that only soft-core sex scenes were shot for the film. Deep Throat Part II is Linda Lovelace's second feature film (she only officially starred in three). A young Judy Tenuta (comedienne) has a walk-on cameo. The film is one of Sarno's rare comic efforts and contains an unusually polished soundtrack featuring tunes written by, among others, former members of Jay and the Americans.

马里奥（吴镇宇 饰）每天活得浑浑噩噩毫无斗志，一次偶然中，公司新人小雪（李嘉欣 饰）的出现吸引了他的目光，他与老板发哥（邹凯光 饰）打赌说自己能够在三天之内将小雪追到手。为了在博弈中获胜，马里奥欺骗小雪说自己患上了不治之症，而单纯善良的小雪果真渐渐落入了马里奥所设计的圈套之中。小雪的父亲陈伯（黄一飞 饰）是一名经验丰富的医生，小雪将治愈马里奥的希望寄托在了父亲的身上。经过陈伯的研究和调查，马里奥的骗局被拆穿了，除此之外，他还发现发哥公司所贩售的丰胸药有着致癌的危险。得知真相的小雪感到十分手上，一个复仇的计划在她的心中诞生了。

1917年，中国西南边陲的刘家村。刘金喜（甄子丹 饰）和妻子阿玉（汤唯 饰）共同抚养两个儿子方正和晓天，日子平淡且幸福。直到某一天，两个不速之客打破了刘家村的平静，也摧毁着金喜一家的生活。这二人企图洗劫村中的钱柜，被刚好在此的金喜撞见，一阵混乱打斗，二匪稀里糊涂被金喜打死。由于其中一人是政府通缉的要犯，因此县官大喜过望，村里人也将金喜奉为大英雄。但是，这看似普普通通的盲打误杀却引起一个人的怀疑，他名叫徐百九（金城武 饰），是县衙的捕快。从蛛丝马迹上来看，二匪系死于武功高强人之手，徐百九由此留在村里，对金喜展开了连番的观察、调查与试探。在这一过程中，金喜神秘的真实身份渐渐浮出水面，而刘家村也面临着一场空前的危机……