In 1976, Mary Gillispie of Circleville, Ohio, began receiving disturbing, anonymous letters accusing her of having an affair with the local school superintendent. What Mary didn't know was that choosing to ignore those letters would set off an incredible series of events that would span two terrifying decades. This case is a twisting spiderweb full of lies, conspiracy, and murder that has captivated the entire nation, even all these years later. Pull up a comfy chair and pour yourself a cup of your strongest poison; you're going to need it if you think you're going to uncover the true author of the Circleville letters.