The protagonist of Jacob Appel’s 2017 novel, The Mask of Sanity, is a doctor, a family man, and a murderer. Appel offers a rare insight into the life of this high functioning sociopath, Dr. Jeremy Balint. With a staggering seven master’s degrees, medical degree, law degree, and experience in clinical psychiatry, Appel is certainly authority enough to paint a convincing psychological profile of such a troubling protagonist. The close third person narration allows the reader to hear Balint’s twisted thoughts, while also observing and nearly falling victim to the carefully constructed facade of “the most ethican human being on the planet.”