The chief of internal security for New England's professional basketball team, the Highlanders, is found dead in his office, with a suicide note and conflicting evidence of foul play. Refusing to believe he would have reason to kill himself, and frustrated with the slowness of the police force's progress on the case, Johnny Murphy's widow, Roseanne, and friend, Randy, launch a renegade investigation of their own. Aided by Roseanne's brother Graham, a fiercely protective loose cannon, they dig up evidence that Johnny, just previous to the date of his death, was running his own undercover investigation into the drug overdose of a star player for the Highlanders. The amateur detectives find themselves mixed up with a ruthless gang of mobsters, many of whom are responsible for the drug trade-and a string of violent murders-from Washington, D.C. to Boston. When their quest takes a gruesome and deadly turn, the three wonder if the're in over their heads.