Brad Masen (Walter Pidgeon) really has it all. He’s a highly respected attorney, known for his dedication to upholding the law. He has a lovely wife Stella (Ann Harding) and his son Bob (Richard Andersen) is about to follow in his father’s footsteps and become a lawyer, too. But it all starts to fall apart when Brad’s friend approaches him about defending Rudi Wallcheck (Keefe Brasselle), who is facing a murder charge. Since Brad doesn’t handle criminal cases, he initially turns the case down. But after thinking it over and meeting with Rudi, he changes his mind since he believes Rudy is sincerely innocent and wants to help him.
Despite his lack of experience with cases like this, Brad successfully convinces the jury that Rudi is not guilty. But it isn’t long before Brad realizes that Rudi is nothing more than a good actor. In reality, he was a known thug who was indeed guilty. Horrified at his failure to uphold the law, Brad immediately starts doing everything he can to right his wrong. He does some investigating and finds out Rudi has been involved in a crime syndicate that shakes down local business owners for “protection money.” Even worse, it turns out the syndicate is run by Brad’s friend Andrew (Eduard Franz). When Andrew realizes that Brad knows what he’s doing, he starts cautioning Brad about what getting tangled up with him could mean. In a rage, Brad stabs Andrew to death using a knife he had taken from Rudi’s apartment.
Since the police find Rudi’s fingerprints all over the gun, he immediately becomes the top suspect. But even in a situation like this, Brad is still deeply committed to the law and doesn’t want Rudi to be convicted of a crime he didn’t commit. Brad represents Rudi in court once again, but can he save Rudi?
If I were to sum up The Unknown Man with one word, I would pick “adequate.” It’s likable enough, but not a movie to go out of your way for. It’s worth seeing if you’re a big Walter Pidgeon fan as he’s quite good in it. But the rest of the cast doesn’t rise above being simply sufficient (Ann Harding’s role is fairly small). The story had potential, but other pieces of the puzzle aren’t strong enough for the movie to become as good as it could have been. There are certainly worse ways you could spend an hour and a half and it’s the sort of thing I might watch again if there isn’t anything else on, but it’s just an average movie.