石一坚（周润发 饰）在女儿（童菲 饰）的婚礼上，因误用兄弟小马（张家辉 饰）的“催眠治疗”加上机器人炸弹袭击而变得精神错乱。神秘人物易天行（张学友 饰）一心想要置石一坚于死地，幸亏龙五（向华强 饰）带领儿子龙十五（向佐 饰）及时营救。“赌侠”刀仔（刘德华 饰）与赌神表妹高菲（李宇春 饰）也一起来帮助石一坚恢复记忆，众人终于知道易天行就是幕后黑手，为了调查清楚真相，石一坚与“赌神”（周润发 饰）联手，最后大战一触即发。©豆瓣Ken is holding a wedding ceremony in Macau for her daughter, Rainbow, who is marrying his protege, Vincent. Ken's best buddies, Vic and Mark, are invited to the wedding. On the wedding day itself, Mark receives a phone call from Michael Chen, who warns him that a mysterious tycoon has hired mercenaries to assassinate Ken. The wedding is then sabotaged, while Ken and Mark are accused to have engulfed DOA's illicit money. Once again, Ken and Mark are being chased by assassins and Michael arrives to rescue the guys along with the help of Faye, Ko Chun's niece.