The Angel of Terror by Edgar Wallace

Angelically beautiful Jean Briggerland is a sociopathic criminal, so lovely that none can see her guilt -- even in connection with the most blatant crimes! Can Jack Glover, best friend and lawyer to Jeans latest victim, bring her to justice before she murders her way to unspeakable wealth and power?   This is a riveting tale which sets out with a man being sentenced for murder and a beautiful, innocent woman having had to testify against him. Except, what everyone thinks is exactly opposite to the truth, according to the condemned mans friend and attorney, Jack Glover. He claims that his friend was framed. Meanwhile, poverty-stricken Lydia gets pulled into this scenario completely out of the blue and is put in the situation of having to decide who to trust. One person is telling the truth and the other is out to murder her. We are not really ever in the dark about it, but watching Lydias thinking and also seeing the behind-the-scenes machinations makes this a real page-turner.