Billy the Kid is a young, up-and-coming snooker player. His manager, T.O. (The One), a compulsive gambler, falls into debt with psychopathic loanshark the Wednesday Man, who offers to cancel T.O's debt if he can arrange a 17-frame grudge snooker match between Billy and the reigning world champion Maxwell Randall (popularly known as the Green Baize Vampire).