The biggest problem with Abbott & Costello Meet the Killer, Boris Karloff is that for the most part it isn't very funny. The gags are tired and the story tedious, particularly when combined with Lou Costello's unrelenting camera mugging. What few good moments the film has are generated by Karloff, but even then he's much constrained by the film's formulaic script and pedestrian production values. Fortunately, the film does have one fine comedic scene in which Karloff, as a swami mentalist, attempts to hypnotize hotel-bellboy and crime witness Costello. Unlike the remainder of the film, which is overly cluttered with broad pratfalls and sloppy timing, in this scene the horror star and the comedian find the right tone and pacing. Fans of Karloff will want to catch Abbott & Costello Meet the Killer, Boris Karloff for his performance. Otherwise, all but the most hardcore Abbott & Costello fans are likely to find the film uninteresting.