"Night Key" rolls along at a decent pace. Karloff is as good as ever, playing a character who comes off as extremely naïve at times. He has good chemistry with Jean Rogers, as his daughter. She gets a love interest in the form of a cop, Warren Hull. The romance isn't well developed but Hull is nice enough. Hobart Cavanaugh as Petty Louie, the thief Boris teams with, provides most of the movie's humor, especially his confusion at his partner's good-nature pranks. Alan Baxter is the serious villain of the film, a monotone-voiced, appropriately threatening crime boss. You won't loose too much during the 67 minutes it takes to watch "Night Key," even if you could maybe use that time better, especially if you're looking for a horror movie.