在这部两厢情愿爱情片中,张伟伦（任达华 饰）是一名冷酷无情的职业杀手，一天，他被派往香港进行暗杀任务，哪知道自己的行踪居然遭到了泄露。为了保证任务能够顺利进行，张伟伦决定先按兵不动，隐姓埋名潜伏在一座小村庄之内。李带好（郑裕玲 饰）是生活在那里的一名老师，她将房子租给了张伟伦。
李带好以为行踪诡异的张伟伦是舞男，于是对他处处提防。另一方面，组织发现张伟伦迟迟没有动静，于是派出了另一个杀手艾利克斯（黄子扬 饰）接替张伟伦的任务，艾利克斯早就想杀掉张伟伦取而代之，于是将此视为千载难逢的机会。
A killer fails to assassinate his target and attempts to escape from pursuing bodyguards. With the help of a woman he runs into in the hotel, he is able to escape detection by pretending to be a gigolo. Later, he becomes a tenant in her house. Still believing him to be a gigolo, she dislikes him at first. However, they eventually fall in love and he reveals his true past to her. He gives up his life as a killer, but must face one final confrontation from a rival assassin out for revenge.
