When Sam and Jay have the ghosts bunk together to free up rooms for guests at the bed-and-breakfast, they learn that Thorfinn has been having night terrors, which inspires Sam to enlist a therapist to help him.

An '80s "mean girl" ghost named Stephanie, who died on her prom night, is awakened in the attic, triggering Sam to confront what happened on her own prom night; Alberta discovers she has another special gift.