Lord Edgware Dies (Poirot)

The beautiful actress Jane Wilkinson made no secret of the fact that she wanted to exchange her husband for another, still wealthier, one. So when he is found murdered, all eyes turn to her, especially since she was seen entering his study only moments before the body was found. She asks famed detective Hercule Poirot to help clear her name. But how can he believe in the innocence of a woman who tried to hire him once before - to get rid of her husband?