玄笔录前传之异域魔道

　　黑帮继承人之间为了争夺下一任社团领袖之位在地底展开厮杀，却引出某种未知的生物,这是作家夫妻二人笔下的故事，也是他们现实生活的映照，小说中的角色要在虚构的世界对抗未知的怪物,而作家夫妻二人能否在真实世界对抗已知的痛苦?一切,都交给爱去解答。

　　Kyohei Aizawa, an assassin for a covert non-governmental espionage group in Japan called "SEEK", is grieving over the loss of his girlfriend from a tragic plane accident. The leader of "SEEK",Ryo Mikumo, contacts him for an emergency mission; save a fellow agent, recover a new highly explosive liquid called "RDX@", stop a ruthless Yakuza leader, Sojiro Kotsuki, and his gang before they take over Japan. Although the Ninjas were thought to have disappeared... the new breed of assassins live on helping to protect Japan and all that is right; the Ninjas are coming soon.

贝多芬（岑建勋 饰）和阿秋（吴耀汉 饰）是一对好朋友，也是搞笑鬼马的便衣搭档。他们常将警局闹得不可开交，连上司陈办（陈欣建 饰）也头疼不已。不过，自从阿秋和安娜（叶德娴 饰）结婚之后，贝多芬就变得孤苦...

某市发生一起奇怪的交通肇事逃逸案，刑警队长王金刚在查案时，发现该案件谜团重重，通过复杂线索，又牵扯出恶势力偷盗国家原油案件，发现幕后黑手郑氏兄弟。在查找证据和追捕的过程中，正邪之间展开了一场生死对决。