WHEN THE CURTAIN FALLS Fifteen years ago Sam Dunne was the lead guitarist and singer for the popular rock band, Gin Sing. Critics and fans prophesied a meteoric rise to the top of the music charts. Then Dunne's bandmates, Eddie Shay and Danny Barton, kicked him to the curb and went chasing after rock stardom without him. Dunne now works small one night gigs while teaching English Literature at a community college. He's let the past go and learned to accept things as they are. Then he turns the radio on one morning to learn Shay has been murdered: shot to death in his private home studio. Soon...