Ten years after the devastating massacre that occurred on Christmas morning in 2003, the community of Burnt Sparrow, NH struggles to move forward. Meanwhile, Rupert Cromwell and Gladys Esherwood find themselves trapped in End House and suffering unbearable monotony day in and day out. When a town courier named Pierce arrives at End House and introduces Rupert to a secret organization known as The Perdido Society, Rupert discovers a deeply intricate and intensely sinister web of secrets spreading through the town. It isn’t long before more blood is spilled, shameful transgressions are revealed, and temptations are finally satisfied. This is the story of two lost souls who are sent on an odyssey into the depths of depravity only for them to discover that it’s quite easy to turn monstrous, to become the thing you once despised.