From The Perry Mason TV Show Book
Glenn Falkner owned a small motel in Las Vegas but fell prey to the gambling tables. When he wouldn't pay up, bigtime thug George Castle shot him.

Now Falkner's daughter is alone and she must deal with dad's debts and George Castle's designs on her newly inherited land. She has a motive to kill Castle but someone beats her to it. Tragg arrests her on suspicion anyway. Enter Perry for the defense.