My Lady Is a Tramp, by Gil Brewer (epub/Kindle/pdf)
Classic mystery story by Gil Brewer. Shortly after going AWOL from the Navy, Al York find his wife completely changed: she has started drinking, he knows she's having an affair, she is clear that she doesn't really want to be with him any more. Jack pays a street thug, Bart Snyder to check up on Nina's supposed lover, Errol Trout. And that's where the trouble starts...