I think this was a cool idea, and some of the shorts worked really well. Main complaint is that the style made it somewhat confusing to get a sense of the space in some of the shots, like the bit where he's checking under the bed. But in some of the others, the style worked well to leave something to the imagination, which i think is an important part of what made the original stories as interesting as they were.
This would be a fantastic concept for a collab, by the way. If you got a few people on board for the second one, it could be really fun to see other people's styles mesh with the monochromatic/horror theme. Anyway, I like it. Good job.