When Lily's neighbour, Mrs Soames, knocks on Lily's door in the dead of night upset about a violent ghost in her home, Lily is sceptical. Her doubt disappears when she's chased from the property by a terrifying apparition. But that's not the worst part: now Mrs Soames and her pet cockatoo are moving in, and the only way to get rid of the annoying guests is to banish the ghost... but that's easier said than done.

Mrs Soames isn't the only one with a haunting problem. Angelica asks Lily to assist in a PIB investigation: Westerham residents are selling their homes in droves, at less than market prices. When previous owners of the houses start dying, Angelica ramps up the investigation. Whoever's behind the scheme is not afraid to kill, and Lily and her friends may be next.

Then Will turns up at one of the crime scenes after being mysteriously MIA for a few weeks... but it's not a happy reunion. His callous disregard for the law and her safety is very un-Will like, and Lily worries he's turned rogue.

Can Lily figure out what's going on before Mrs Soames and her cockatoo drive her crazy and more innocent people are murdered? And can she get to Will in time, or is he lost to her forever?