风烛残年的中国最后一个在世的太监刘来喜（莫少聪 饰）回忆起一生的经历……来喜十一岁净身入宫，在革命风起云涌的年代里，他出宫后与招弟（温碧霞 饰）母子组成了一个家庭，做小贩度日。革命党人秋凤（吴家丽 饰）与胡贞忠（黄日华 饰）行刺要人，被来喜偶然救下。太监大总管小德张（罗文 饰）欣赏来喜的京剧唱功，威逼其再度入宫，不愿连累招弟的来喜只得将母子俩送去广州，投河自尽，岂料被秋凤和胡贞忠救下。革命党人反对建立满洲国，计划盗窃张作霖（郑则仕 饰）收藏的清朝玉玺，秋凤因来喜见识过玉玺随邀请他加入革命。胡贞忠与来喜潜入张作霖的大帅府做卧底，不料事情败露，来喜被荒淫的张作霖娶为姨太太，婚礼当夜，先行逃出的胡贞忠带领革命党人强攻大帅府，希望能救出来喜…

Manfred Wong spins this period tale about the life of imperial eunuch Lau Lou-hay, after the emperor was forced out of the Forbidden City. After saving the life of anti-imperial soldier Wu Chung (Felix Wong Yat-wah), Lau (Max Mok Siu-chung) agrees to help him capture the imperial seal, the symbol of political legitimacy in China at that time. Though both manage to cozy up to General Cheung (Kent Cheng Chuk-see), the guardian of the seal, their plan eventually fails. Wu helps Lau flee from Cheung's clutches and, upon learning that he is a eunuch, makes the lad his 13th wife. At the Wu estate, Lau is forced to deal with more than his share of political intrigue, particularly in dealing with Tak Cheung (Norman Law Man), the lead eunuch in the household.