Chan Sipui sought refuge with relatives who owned a restaurant in New York. He later entered a relationship with his colleague, A-Heung. Sipui met Wong Yukfan, the laundry shop owner, and was captivated by her business. He devised a plan to marry Yukfan to obtain control of the laundry shop. Furthermore, Sipui aimed to deceive A-Hueng and take her money. He set up a scheme to kill Yukfan and dismember her body. However, Yukfan's daughter discovered the bloodstains and reported the incident to the police, leading to Sipui's arrest and subsequent trial.. Based on a real murder case in 1930s New York Chinatown.