It’s been a year since Poppy’s husband, Jack, was brutally murdered during his morning run. She’s trying to move on, but what happened that morning is still haunting her. And now she’s sure she is being followed.... Sleep deprived and secretly self-medicating, Poppy is unable to separate her dreams from reality. She feels like she’s losing her mind. But what if she’s not? What if she’s actually remembering what really happened? What if her husband wasn’t who he said he was? And what if his killer is still watching her?

On Selena Murphy’s train home from work, a mysterious woman named Martha strikes up a conversation and shares a confession: she’s having an affair with her boss. In turn, Selena shares her own secret: she suspects her husband is sleeping with the nanny. At Selena’s station the two women part, and Selena never expects to see her again. Until she receives a message. I’d love to continue our conversation. Can we get together? It’s Martha, by the way. From the train. 

On the surface, Annie Powers' life in a wealthy Floridian suburb is happy and idyllic. Her husband, Gray, loves her fiercely; together, they dote on their beautiful young daughter, Victory. But the bubble surrounding Annie is pricked when she senses that the demons of her past have resurfaced and, to her horror, are now creeping up on her.

Rain Winter left journalism behind to focus on her baby daughter. But when a man acquitted for murder is killed, in the same way as his suspected victims, Rain sees a pattern emerging between a series of cold cases. Meticulous and untraceable, this killer strikes in the dead of night, making sure that the guilty are suitably punished for their crimes. As Rain’s investigation deepens, she must face up to dark secrets in her own past and the realisation that the killer may be closer than she thinks....

Thirty-four years ago, on October 31, poor Hannah Talbott took part in a scavenger hunt gone violently wrong. The mean girls made sure of it. To this day, for a haunted local mother, the most unsettling Halloween costume of all is an urban legend they call Hannah-Beast. It’s a reminder of the past she can’t forget. Especially tonight when it’s come back, so close to home.