The only character in the movie with any real depth to them was the annoying asshelmet Petrillo.

What's worse than Jerry Lewis? A Lewis impersonator that's who. And the only thing worse than that is the abysmal jokes they fed this kid from the script. In fact most jokes aren't jokes all, relying on the impersonation to sell it entirely. As bad as this all is there's nothing worse than a comedy that's not funny and this is the film's greatest sin. Still he did a couple of good scare takes and Lugosi is excellent as always.