I don't think I could spoil this book, because it spells it out from the very start; and I've heard it was made into a spectacular movie. This is an existential noir (I know, weird combination?) novella about two people looking for stardom in the great depression. In the hope of being discovered and the need for money they join a dance marathon. While Robert remains hopefully, Gloria sinks into a depression and loses all hope and eventually asked Robert to kill her. Because They Shoot Horses, Don't They?