Five years after she escaped from the house of Jack the Ripper, Maddie thinks she's put her troubles in the past. She's started a new life, and she tries every day to forget about the horrors she experienced. But then a familiar figure appears at her office, and she realizes old ghosts might still be waiting for her. Soon Maddie learns the horrifying truth about the creature she freed from the basement, and about the creature's determination to return to this world. Drawn back to the house on Cathmore Road one final time, Maddie finally has to face not only the creature itself, but also her own role in a terrifying plot. The Final Act is the eighth and final book in a new horror serial, titled The House of Jack the Ripper.