Ben Bookman, a writer and bestselling author in the horror genre, is about to release a new novel "Scarecrow." On the eve of the sales launch, Detective Mills is called to the scene of a gruesome murder. Someone has stabbed an entire family and sewn the bodies into cocoons made of corn husks, just as it happened in Bookman's book. When another family is murdered in the same manner, the writer becomes the main suspect. The problem is that he cannot remember how he managed to finish his novel in just three days—he only knows that he wrote it after traveling to Blackwood, the estate inherited from his grandfather, which had always been the subject of strange rumors in town. Ben worked in the atrium— a room he was never allowed into as a child, filled with rows of strange books without titles, only numbers. And the deeper Ben delves into the history of Blackwood, the clearer he understands that he may have released something sinister that had been trapped there long ago. And it will not stop at the horrors hidden in the pages of "Scarecrow."