A young man must face the challenge of his life by battling against an evil who is out to eliminate all of his enemies.

　　天无门主呼伦法师(张道饰)苦练「子阴毒功」有意称霸天下，作法取童子尿与胎盘，以供练功，手段残酷。高生(袁日初饰)乃阴阳堂弟子，无意中闯进禁地，发现「阴阳分元大法」秘籍，乃暗中偷练，但因根基浅薄，弄得魂魄离身，不能返回，幸得银久(李文泰饰)及时救助。海青派李天道遭天无门杀害，妹李剑娥(刘皓怡饰)遍