Kill or Cure — Mary Kittredge

When a bright young surgeon empties his gun into his wife and a guard, Dr. William Granger's attorney calls on Edwina Crusoe to probe Granger's past so he can sew up an insanity plea. After piecing together a very disturbing puzzle, Edwina suspects that this isn't the first time Granger has had blood on his hands--and it may not be the last.