After escaping a harsh school where punishment was the lesson of the day, seventeen-year-old Louisa Ditton is thrilled to find employment as a maid at a boarding house. But soon after her arrival at Coldthistle House, Louisa begins to realize that the house's mysterious owner, Mr. Morningside, is providing much more than lodging for his guests. Far from a place of rest, the house is a place of judgment, and Mr. Morningside and his unusual staff are meant to execute their own justice on those who are past being saved.