The Season-4 sequel to Humanitarian Aid, Romero and Juliette, took place at Halloween and is basically a Shedim infestation. Make sure Shedims have Immunity to Normal Weapons and an SR5 conversion of it could be a Thriller. Though I'd also add more humor to it.
But Why would shedim know the Michael Jackson dance routine… nevermind forget I said anything.
Because MJ obviously did a deal with Beelzebub to make that song a hit, and so they have "eternal rights" to do remakes of it.
