Someone is angry in Hogan, Ohio.

Residents of the small town are plagued by vicious, anonymous letters. The personalized notes land in mailboxes with devastating effect, revealing secrets and deeds better kept unknown. Whoever the sender is, they know the town and the people who live there.

Reporter Tim Abernathy is assigned to the story and tasked with finding out who is sending the letters and why. The letter writer doesn't want to be found, however, and will kill to keep his secret.

A cat-and-mouse game ensues between reporter and letter writer as the violence escalates, shocking the residents of Hogan. Can Tim discover who is terrorizing the town before becoming the next victim?