Question on "Fear of Spiders" - possible spoilers...
Could Kim Stanley's character possibly have been a witch? And that she put a curse on Patrick O'Neal?
After Patrick O'Neal sees the monstrous sized spider in his bedroom, he runs up the stairs and knocks on the door to her apartment. There is a cut to Kim Stanley, dressed in a dark dress, with a black choker. She has just blown out a candle.
Then she pretends to help him and locks him in his room where the spider is (whether it WAS as big as he thought, or just his imagination). Maybe she made the spider larger, or, if it was is imagination, put a spell on him to think it was larger (or there at all).