1947 saw the debut of the film "Gentleman's Agreement" in which Gregory Peck pretended to be Jewish in order to feel what it's like to be a Jew in America. Naturally, he experiences some discrimination but it's mostly very proper ('nice' anti-Semitism) and the leading man quite handsome. It was NOT particularly gritty and I always thought the film was amazingly tame...and a bit overdone. Here, a year later, a low-budget studio had decided to do a film like "Gentleman's Agreement"--but with more normal looking folks (no handsome Peck or John Garfield here) and in a more working-class neighborhood. And, in addition, the level of hate was ratcheted up...a lot. In fact, in this sick little town, a local hidden hate group has gone so far as kill Jews! John Ireland infiltrates this group of sickies and the film lacks the pretty polish but also seems a bit more gutsy and violent. Oddly, despite the publicity for the earlier film and critical acclaim, I prefer "Open Secret" as it is much more exciting and more like a variation on film noir. A great film? No...but it certainly is interesting and the problems don't seem so mundane as those in the Gregory Peck film. As a result, it shows a seedier and uglier side to ethnic hatred.