Along with the stormy, we get dark. As a creepy horror story, even a spoof of one, it comes with the territory. Much of the film takes place in dimly lit rooms and dark outdoor scenes. The jump from the dark, unlit laboratory to the scene of Inga and Frederick at breakfast is pretty jarring. We could say that the darkness represents Frederick's descent to the dark side, but we won't. It's not. It's just a parody of the original film and a horror movie trope.