Meet Joseph Walker, a patient at the Oakbrook Mental Health Facility. In this audio drama, Joseph obtains access to a cassette recorder and then creates an audio letter for his sister Rose. Over the course of several days, he introduces her to his doctor and several fellow inmates, one of whom suggests that Joseph's life bears a striking resemblance to that of Edgar Allan Poe. Joseph proceeds to familiarize himself with the works of E.A. Poe. His fluency with Poe's stories and poems is astonishing – to others and himself. And it is this familiarity, this ease with Poe's works, that leads Joseph to believe that he himself might be the Master of Horror.