Barrister Antony Maitland doesn't require saints for clients, but he doesn't do divorce. So when he's asked to represent a client being sued for divorce, he unhesitatingly says no. But it's a lot more complicated than that, as the wife is accusing the husband of forcing her into "unnatural contact" with another man. The actual case he's asked to represent is for slander. The wife is using the defense of truth. Antony and everyone else realizes that his client hasn't much chance of winning, and that this case will resolve the divorce case.
At first, Antony is reluctant, but agrees to represent the man as a favor to a friend. But when he comes to believe in his client's innocence, he starts poking around. Then everything changes when the wife is murdered.
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