从没失过手的杀手老赵（王志文 饰），得了帕金森，准备退休，却同时接到两个订单。同一时间，同一地点。一个订单的目标，却是另一订单的委托人。为了弥补心中一个久远的愧疚，老赵决定利用这最后的机会，倾力一搏，把两笔钱全挣了。而一个巨大而复杂的深渊，在静静地等候着他……

郭家驹（潘粤明）大学毕业后创建了一家小型IT公司，但因经营不善负债累累，被迫将公司关闭后，他也失去了女友。不巧的是，在老家福建某个小山村的父亲此时病重，家人要他立刻带女友回去，情急之下，郭家驹租下“三陪小姐”莉莉（李佳璇），要求对方假扮教师冒充他女友回家交差。两人一路磕碰来到郭家驹的家后，郭的母亲为给其父冲喜，要求两人举行婚礼，没想此举竟真有效，郭父的病情有了好转，莉莉也在乡间体会到从没有过的放松。但因为郭家驹打心眼里瞧不起莉莉，两人的戏越演越别扭，莉莉更在知晓了一个曾与她是同行的疯姑娘的遭遇后，大受刺激决定独自离开。

女大学生圣山环菜在主播面试之后，刺杀了身为知名画家的父亲。因为她的外貌姣好，加上被逮捕后抛下的一句：「你们自己去查出我的杀人动机。」使得媒体不断渲染报导，为何前途光明的女儿会杀害了父亲？为何连她自己都不明白原因？同时，临床心理师真壁由纪受出版社委托，计划将圣山环菜的故事撰写成书，因而开始研究这起事件。一个狐媚般的女孩、感情关系复杂……当周遭人物对环菜的可疑处指证历历时，由纪却发现，在环菜身上有块缺失的关键记忆。若找到记忆中那段初恋，是否就能解开杀父的原因？

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