In a crumbling Victorian mansion, Eliza, a young archivist researching her family's lineage, stumbles upon a hidden journal filled with cryptic entries detailing a sinister pact made with a powerful entity in exchange for untold wealth. As she delves deeper, she discovers that the entity is now trapped within the house's walls, its power slowly seeping into the very fabric of the mansion. Eliza must now choose between releasing the entity and saving her family's legacy, or confronting the ancient pact and risking the entity's wrath.