When three college students move into an old house off campus, they unwittingly unleash a supernatural entity known as The Bye Bye Man, who comes to prey upon them once they discover his name. The friends must try to save each other, all the while keeping The Bye Bye Man's existence a secret to save others from the same deadly fate.

Jeffrey Dahmer struggles with a difficult family life as a young boy. During his teenage years he slowly transforms, edging closer to the serial killer he was to become.

75 Years after the Mad Butcher of Kingsbury Run's killing spree, bodies have begun to turn up again. A private investigator, Camila Ramsay, enlists Leo Zhukov, a true crime author and former cop, to solve the crimes before more people are killed and left scattered around Northeast Ohio.