Echo Burning by Lee Child

Jack Reacher, adrift in the hellish heat of a Texas summer.

Looking for a lift through the vast empty landscape. A woman stops, and offers a ride. She is young, rich and beautiful. But her husband's in jail. When he comes out, he's going to kill her.

Her family's hostile, she can't trust the cops, and the lawyers won't help. She is entangled in a web of lies and prejudice, hatred and murder.

Jack Reacher never could resist a lady in distress.

Although the Jack Reacher novels can be read in any order, Echo Burning is 5th in the series.