Petty thief, amphetamine junkie…Billy Conover is a social parasite keeping just one step ahead of the law…until the night he accepts an invitation to go for a joy ride and ends up being party to the brutal killing of a black youth. BILLY BOY is his odyssey through an underworld of small-time thugs, ex-Girl Scouts who turn tricks for a vial of crack and an overburdened legal system that eventually holds Billy responsible for a murder to which he refuses to believe he was anything more than a witness.