There's a killer leaving prospectors cut from ear to ear, and it's up to Longarm and his new sidekick from Boston, Dudley Applewhite, to bring him in. Young Dudley has to learn the lawman's trade, and if Longarm can't show him the ropes nobody can. But there's another kind of predator a young marshal has to watch for--lonely ladies looking for a long, tall lawman to hang on to.