This film is put together by three city ghost stories that occurred after midnight. The first story describes a loud mouth slacker cop encounters after being ordered to guard a murder scene alone. The second has a couple accidentally hit someone while driving but could not find the victim's body. The third is about a bad son who is afraid his late mother would return for revenge, so he would rather spend nights playing mah jong with friends and wouldn't dare to go home, unfortunately things in this world have a way to go the opposite way......

A police sting takes place in a haunted apartment building. The sting goes bad when a wicked female ghost crashes the party.

In Hong Kong, a vigilante serial killer leaves death notices, stating when and how he will murder a victim. Even if the victim reports it to the police and receives protection, the killer can easily break through and execute them. In response, the police set up a special task force and reveals a major conspiracy hidden behind.

程纬（周润发 饰）是前途无量的大学毕业生，进入公司后，能力颇佳的他深得大老板的赏识，更与老板的女儿方希文（郑裕玲 饰）之间产生了真挚的感情，渐渐走到一起。然而程纬的母亲深陷赌瘾之中无法自拔，欠下巨额赌债，为了帮助母亲还债，程纬不得不动了挪用公款的心思。 程纬的行径被一直眼红他的阮其昌（李道洪 饰）揭发了，最终，程纬为自己的行为付出了代价，锒铛入狱，他和方希文之间的感情也就此走到了尽头。在狱中，本性善良的程纬很快就交到了朋友，其中就有曾经的黑帮头目龙冠。出狱后，在龙冠的介绍之下，程纬进入了一家珠宝公司工作，人生重新走上了正轨。