It has been three years since Desmond, a.k.a. the Fallen Angel, had began his new life as a killer for the Slenderman and his Proxies. With their usual killing season over, the Proxies now return to a normal life to rest until the next season. However, when a sudden spree of savage murders begins to terrorize to the city, it is up to the Proxies to find out who, or even what, is causing them or else they'll risk getting discovered for who they really while hiding among the humans.