Although his murdered friend was by all accounts a scoundrel a true "bounder" Edward Wales is determined to trap his killer by staging a seance using a famous medium. Many of the 13 seance participants had a reason and a means to kill, and one of them uses the cover of darkness to kill again. When someone close to the medium is suspected she turns detective, in the hope of uncovering the true murderer.

玄天、地泉、日月、降魔4把神剑！主人公叫于英杰、幽冥法王。南海双妖、徐飞霞等等。剧中情节有3大高手：元阳居士、太乙神佗、幽冥法王：4个有缘年轻人（两男两女）。开始元阳居士（正义）把幽冥法王（邪派）打败，致使法王闭关修炼，因吃了千年灵芝，功力暴涨，两大正义隐士合力也无法抗衡。为武林除害，寻找4把神剑及4个有缘人，4剑合璧除去法王。