Book Review: The Hollow by Agatha Christie (1946)
Synopsis: The talented but adulterous physician, Dr. John Christow, is murdered while attending a family get-together. When his body is discovered, his wife, Gerda, is standing over it holding a pistol. This was witnessed by famed detective, Hercule Poirot and Gerda is immediately the prime suspect. There's just one problem, the gun in her hand wasn't the same one that killed her husband.
You can read my review here: https://wizzley.com/book-review-the-hollow-1946/