The Sinister Urge on AllMovie

A series of pornography-related murders has Lt. Carson (Kenne Duncan) frustrated, not only because the killer remains at large but also because the smut peddlers are distributing their disgusting products to high school kids at ice cream shops. They raid illicit photography studios, but it's not enough; Gloria Henderson (Jean Fontaine) runs the racket from a comfortable distance, and she's funded by "the syndicate." With a steady stream of naive hopefuls arriving in Hollywood with stars in their eyes, casting is no problem and the desperate, shamed girls aren't quick to blow the whistle. The director of these dirty films, Johnny Ryde (Carl Anthony), warns Gloria that her henchman Dirk Williams (Dino Fantini) is seriously unhinged. He's the one responsible for all the sex crimes, which he commits after long, loving exposure to their pornographic pictures. Eventually Dirk gets sloppy and the cops find his fingerprints on some very sleazy evidence, which leads Gloria's mobster backers to demand his execution. The whole dirty scheme goes awry, though, and the police are finally able to purge the community of the smut gang.