A woman lay beneath the floorboards of Hill House for for more than ten years. Harry Starke vows to discover who she was, who put her there, and why she had to die. To find the answers, Harry must embark upon an investigation that will put him and those close to him in deadly danger, take him to the lost and long-forgotten streets buried under the city, and deep into the Dark Web where he comes face to face with murder, organized crime, prostitution, and human trafficking.