Upstate NY, 1982. Viv Delaney knows something isn't right at the Sun Down motel, where she works as a night clerk, and she's determined find out what. Upstate NY, 2017. Carly Kirk has always been fascinated by her aunt Viv who disappeared from the Sun Down before Carly was born. Using a small inheritance from when her mom dies, Carly leaves college to figure out what happened to her aunt thirty-five years ago. Soon, Carly is mirroring her aunt's life, working as the night clerk at the motel, where a haunting presence still lingers and a possible serial killer stalks the night desk.