Cello-playing cop Jack Friar searches for a teenage runaway on Turk Street and ends up in the home of an elderly couple. The house also turns out to be the headquarters for a gang of criminals who are planning a bank robbery, and Jack is quickly held hostage. When Jack is left alone with the leader's girlfriend, a master manipulator of the gang, he teaches her to play the cello and the two share a mutal attraction. Jack can't decide if she's for real or just manipulating him too. Especially since Erin continues to manipulate gang leader Tyrone, violent thug Hoop, and inside man David.