一間公寓，兩個晚上。寂寞警察和情場老手的奇情相遇。

为了帮朋友的忙，刘杉（葛优 饰）成为了学校里的代课老师，没有系统学习过教书育人的他决定用一套自创的方式教育学生，让他感到意外的是，他的这套“旁门左道”竟然让他受到了学生们的信任和爱戴。一连串的突发事件让刘杉和女友之间的感情产生了裂缝，女友最终选择了离开。与此同时，他的 某些做法引起了学生家长和校方领导的不满，他们以刘杉的“合同”已经到期为由，命令他卷铺盖走人，尽管刘杉很舍不得班上的学生们，但“军令难为”，他不得不走。临行前，他与两情相悦的同事甄贞（剧雪 饰）相约，在“上一当”餐厅对彼此做一个最后的告别。

It's 1846. Sweeney Todd and Anthony Hope, greeted only by a crazed beggar woman, sail into London, where Todd implies he has been before but not in quite some time. Todd heads to his old stomping grounds of Fleet Street, where he runs across the pie shop belonging to Mrs. Nellie Lovett, who professes to make the worst meat pies in London due to the high cost of meat. The upstairs of her building has sat empty since no one wants to rent a space that is considered haunted by its long ago tenant, barber Benjamin Barker who was falsely accused and ultimately sentenced by the sadistic Judge Turpin and who was shipped away to prison in Australia, leaving his wife Lucy and infant daughter Johanna alone in the world. Todd comes to an agreement with Mrs. Lovett to rent the upstairs of her building so that he can open his own barber shop. A series of incidents, including one with rival barber Senor Pirelli, make Todd change his focus slightly away from having a choice encounter with Judge ... Written by Huggo

即將改建的老房舍裡，住著兩兄弟和他們的父親。父親總是嚴厲、難以親近，而弟弟盡責地擔任哥哥的跟屁蟲，他知道無論發生什麼事，哥哥永遠和他站在同一邊。一天又一天，生活如此安靜，彷彿永遠不變，卻在某個夏日午後，時間悄悄帶來屬於成長，幽微而神祕的片刻。