[@MissCapnCrunch] Sorry for DP'ing, I want to respond to your vote:

1. Yes, but make sure you plan it out. I've read all of the original Sherlock Holmes books, so if you make it up as you go, I'm going to catch loopholes. You could give him a motive of revenge, but you could just as well make him just get a kick out of killing people. 

If you want, I'll gladly collaborate via PM to figure out how it would go. I'll compensate for RPing a guy who gets offed early on. Even better, if I was a popular, loved person, it'll encourage them to stay (WE SHALL AVENGE HIM!) rather than run for their lives.

2. Not really interested. Then it's just a lot of character development and nightmares, and it doesn't have a clear ending. For multiple murders, they can still do those things, but it'll have an end goal (catch the killer and everyone goes home), and they'll have something to do.

3. Nonononono please no. Then we have to figure out what it is and how to kill it, and we'll end up with stereotypical "Monsters aren't real!" arguments. Would they have to use Google or a library or something to learn how to combat it? "Siri, how do I kill the swamp kraken?" Haha.