"A Wicked Ghost" starts with four youngsters named Rubbish, Big-bee, Alice and Dee Dee playing the game of 'Contacting Ghosts'. Suddenly Ming (Garbiel Harrison), who is in the house while they are playing, sees a ghost in long hair. Subsequently, Rubbish is killed by the ghost. Magazine editors Jack (MOK Ka-yiu) and Ming's elder sister Cessy (Gigi LAI Chi) try to investigate the case. During their investigation, they find that both Big-bee and Alice have been killed. As the whole incident is very weird, they are afraid that Ming will also die. They seek help from their friend--drama teaching Mr. MO (Francis NG Chun-yu). They attempt to sort out every possible clue. Finally they find out that the deaths invovle a ghost who has caused 66 deaths in a village 66 years ago...