WHO DONE IT...FOR NOTHING? centers on Mitzi Raven, who in the authors' first book, WHO DONE IT...TWICE OVER?, assisted Long Beach Detective Jack Mallet in solving his homicide case. When an elderly, apple-pie-baking lady is murdered, Miss Raven refuses to support Mallet's focus on his prime suspect and goes out on her own to prove him wrong by cracking the case. And wrong in believing women can't be detectives. (So last century thinking!)