Hotelier Pak Kam-lung meets Cheung Yuk-neong on a ship travelling to Hong Kong. In Hong kong, Kam-lung searches for Yuk-neong's whereabouts and throws a costume party to lure Yuk-neong. He finally meets Yuk-neong again but she is cool towards Kam-lung. In order to get close to Yuk-neong, Kam-lung disguises himself as a hotel attendant. Meanwhile, the gentleman-thief Yu Yat-chi is attracted by Yuk-neong's diamond brooch. Yat-chi poses as a banker to get close to Yuk-neong. He lures Yuk-neung to his hideout by falsely claiming that her father is hurt in hospital. Yuk-neung is kept prisoner in an attempt to force her father to hand over the diamond brooch. Kam-lung puts on a female disguise to penetrate the hideout to save Yuk-neong. His disguise is seen through by Yat-chi, but fortunately, the police is alerted in time. The bandits are arrested. Finally, Kam-lung and Yuk-neong are married.