 A young man rides an apartment building s elevator up, but another man has opened an upper floor elevator door with a knife, stopping the elevator, then jumps on the roof of the elevator, opens the escape door, and shoots the young man. After the murder Edie s friend Lynn Martel, also a nightclub singer, begins to drink uncontrollably. Edie asks Peter Gunn to help Lynn out, and Gunn discovers that Lynn s club is controlled by mobsters.