Richard Widmark is mesmerizing as Tommy Udo a true psychopath , a sadist who truly enjoys his work , as twisted as it comes and every bit of it comes through .That this is his first role is amazing , he looked as if he researched this role for years , I was scared just watching him that there were actually people like that in this world !Victor Mature is a worthy counterbalance to Widmark's psycho , the good man who made a mistake and is trying to get his life back . See this one for Widmark alone its a classic , one of those roles an actor was born to play , Widmark reminds of Lugosi 's Dracula .But that its his first part is mind-boggling , see this at all costs !