A ring worn by apartment manager Kate has disturbed a ghost with a dangerous past.

Molly becomes concerned when her friend Leah falls victim to a horrifying series of events. Jed soon realizes there are supernatural forces at work, and when Kate discovers Leah might not be who she says she is, it becomes clear she is harboring a dark secret.

Sadie Novak is recovering from a breakdown, but when she meets Jed the spark. An angry ghost from the asylum's bleak history forces Sadie to confront a horrific event in her past.

Molly fears the worst when Ella, the girl she is childminding, tells stories about an imaginary friend being abused. Jed and Ryan encounter a familiar face at Grace's funeral, while Kate learns disturbing revelations about her grandfather.

Mark thinks a woman may have a vendetta against him, but Jed knows the truth is darker. Ryan begins to unravel the mystery of Jed's birth, Kate suspects Warren might be hiding a dreadful secret, and Jed faces his toughest test yet.

When Molly is haunted by the figure of a burning man, Ryan is forced to protect her. Kate is pushed to the brink as she wrestles with her conscience, while Jed tries to make contact with his mother and is brought face-to-face with a dreadful secret in the depths of Bedlam Heights.