There's a whole glow-in-the-dark sub-atomic genre about people being where they shouldn't, namely near some roentgen-emitting matter: The Incredible Shrinking Man, Attack of the 50 Foot Woman, The Beast of Yucca Flats, mutant films about mutating men (and women). Allan Dwan's very last effort collides a gunsel actioner with experiments in exposure to create a better-than-buff bad guy. The Most Dangerous Man Alive stars Ron Randell as a racketeer on the run who happens by a secluded test site. After surviving a “cobalt isotope X” blast, he discovers that his newly redecorated body now absorbs steel. It's like wearing a full metal jacket with matching trousers. Mr. Metal then wreaks revenge on Andy Damon (Anthony Caruso), a mobster who not only betrayed him but also glommed his mob and his moll, the ever-perky Debra Paget. But in the end, can Dwan's steely antihero take the heat?