(Originally published on ArchiveOfOurOwn) After the Collins' house is burnt, Zach and Clint are dead and Deputy So-and-so is missing, the BAU go to investigate the possible serial killer, based on evidence the deputy left behind. But when they find several reels, detailing all of the family murders in the last fifty years, the agents seem to be going in too deep.
Crossover - Criminal Minds & Sinister - Rated: T - English - Horror/Family - Chapters: 1 - Words: 16,723 - Favs: 8 - Follows: 3 - Published: 11/23/2019 - A. Hotchner/Hotch, Jennifer J./JJ, S. Reid - Complete