林世荣（卢海鹏 饰）生前是黄飞鸿的弟子，死后未能获得投胎转世的机会，成为了流落阳间的孤魂野鬼。林世荣辗转来到了一间学校之中，在这里，校长廖慧珠（吴浣仪 饰）和教导主任欧阳协成（卢海鹏 饰）沆瀣一气，中饱私囊，不知道在公款里捞了多少的好处，这让知晓真相的学生们十分气愤。 学生们设计想要戏弄校长和教导主任，没想到却弄巧成拙令两人不幸丧命，就在这个节骨眼上，林世荣碰巧飘过，附在了教导主任的身上借尸还魂。林世荣生性活泼爱玩，在他的带领下，校园内的气氛逐渐转变。之后，协成的冤魂找到了林世荣，两人为了抢夺肉身而展开了激烈的争斗。

Lam Sai Wing (Lo Hoi Pang) was an apprentice of the legendary Master Wong Fei Hung. Because he had killed too many during his lifetime, he was delayed from reincarnation, and his soul was somehow trapped inside a high school. A group of wealthy students, Chui Man Kin (Edward Mok), Sze Chun Nam (Sunny Chan), and Tsang Chi Sing (Cheung Kam Ching) were upset about the greedy behaviors of the school mistress, Liu Wai Chu, and the disciplinary counselor, Au Yeung Hip Sing. The students played tricks upon them, and accidentally led them to death. Seizing this opportunity, Wing returned to life after entering into the teacher's body. Without any experience as a teacher, Wing created a lot of trouble, and made the entire school livelier. As the school atmosphere improved, Hip Sing's soul returned and demanded to return into his own body.