A young man, Tommy Chow, gets hold of a set of tattoo needles. He tattoes an innocent victim, and the tattoo then comes to gory life and kills the victim. In return, Tommy, a compulsive gambler, gets good luck in the games. The trio team up with Tommy's grandfather, Lom, a Chinese medicine man, and try to save Tommy's sister, the next victim, before the snake tattoo kills her. Unfortunately, Tommy is playing a game of high-stakes Russian Roulette when they save his sister.