Ignatius William Perrish wakes up one morning, after an all night binge, and feels something strange on his head. Much to his surprise he discovers that he is growing horns. Not just horns, but horns that are very reminiscent of those seen on pictures of the devil.

Ignatius, or Ig, seems to have a beautiful life going for him. He was upper middle class and had fallen in love with the girl of his dreams, Merrin Williams. They were so meant for each other that their relationship went through grade school to high school. The only other prominent member in the relationship was their friend, Lee Tourneau.

Ig, at Merrin's insistence, has accepted a job in Great Britain. On the night he is to leave Merrin drops a bomb on him. She tells him that they should start seeing other people and that for all practical purposes their relationship is at an end.

Ig does not take this well and winds up on an all night bender. That same evening Merrin is raped and murdered. Ig is a prime suspect but is released because there is not enough evidence for conviction.

Ig, who now has horns, finds that when he comes in contact with people they tell him the sordid details of their lives. Ig is able to put together some facts that lead him on a quest for Merrin's murderer. The objective is not to bring the murderer to justice, but rather to make him pay dearly for Merrin's death.

Joe Hill weaves a strange story that is part horror, part romance, and a lot of mystery. He keeps the reader turning the pages to not only find out who the murderer is, but also to look into the soul of Ig, and determine if he truly is the devil incarnate.

A word of caution to the reader. This book does contain strong language, sexual content, and some irreverence. Therefore, it will not be suitable for all readers.