Ku Fung (Ng Man Tat) and Duen Hoi (Lau Kong), both are apprentices under the Celestine Sect, must fight off their former sect brother Ku Yim Yeung (Ng Man Tat) who is also Ku Fung's twin brother, who has turned evil and women like due to learning the Maiden scripture and then formed his own Maiden Force cult. In order to stop his former disciple Yim Yeung, Fung and Hoi's Si Fu took it upon himself to learn the Blissful scripture, but because this skill requires so much strength and power from the person using it they will die after only using the fighting move once. Not wanting his Si Fu to sacrifice his life because of his twin brother Fung plots with his sect brother Hoi to steal the Blissful scripture and learn the fighting skill himself so that he can fight his own twin brother and sacrifice himself. Unfortunately Fung and Hoi failed to get the scripture and Hoi accidentally kills one of their own sect brothers in the process of trying to steal it from their Si Fu. Fung is framed for the death of the sect brother Hoi accidentally killed, while trying to escape his sect brothers who are after him now for a murder they think he committed Fung falls down a cliff and is presumed dead. Hoi feeling guilty for what has happened raises Fung's son Yuk Lau (Francis Ng) as his own, but in the process neglects the upbringing of his own son Duen Fei (Stephen Chow). Yuk Lau grows up to be a filial son and good at martial arts where as Duen Fei grows up to be mischievous and hates martial arts. Yuk Lau meets Suet An (Yammie Nam) who is a disciple of Ku Yim Yeung and falls in love with her but because he is more power hungry he uses her to try to get the Maiden scripture. He eventually gets his hands on the Maiden scripture through a sorceress who had stolen the Maiden scripture from Ku Yim Yeung. Yuk Lau learns the fighting skills from the Maiden scripture and becomes like Ku Yim Yeung. He takes over the Maiden Force cult from Ku Yim Yeung, in order to stop his adopted brother
云苍派弟子古峰和段海为破解叛徒古艳阳的玉女神功，不惜盗取祖传的极乐神功秘笈。 事败后，古峰被逐出师门，段海心中有愧，遂抚养古峰之子玉楼成人。 玉楼生性傲慢，目空一切，为求称霸，不但利用爱人雪雁，甚至修练邪派的玉女神功，最后变成不男不女的狂魔。 段海之子段飞淡薄名利，讨厌江湖争斗，却屡遭迫害，遂与妻子李珠及大理国护法夫妇联手抗敌，并冒死练成极乐神功，图与玉楼作生死一战……
雲蒼派弟子古峰和段海為破解叛徒古艷陽的玉女神功，不惜盜取祖傳的極樂神功秘笈。事敗後，古峰被逐出師門，段海心中有愧，遂撫養古峰之子玉樓成人。玉樓生性傲慢，目空一切，為求稱霸，不但利用愛人雪雁，甚至修練邪派的玉女神功，最後變成不男不女的狂魔。段海之子段飛淡薄名利，討厭江湖爭鬥，卻屢遭迫害，遂與妻子李珠及大理國護法夫婦聯手抗敵，並冒死練成極樂神功，圖與玉樓作生死一戰……
