After the demon of her dreams turns human to marry her, Demonology professor Sarah Prescott can’t go through with the wedding. She wants nothing to do with the boring, blond hunk who used to be Legion, Marquis of Hell. But when her best friend is murdered by a demon, Sarah has no choice but to ask her ex for help. She's shocked to find Legion is once again the red-skinned hell spawn she fell for, and stunned to learn her friend's murder is part of a demonic conspiracy to end the world. As she and Legion hunt the killer together, traveling to Hell and back, it’s easy to remember why she loved him. Can she rekindle the best relationship of her life and save the world from destruction at the same time?

Warning: This romantic comedy about fighting demons includes several bad puns, vivid descriptions of demonic attack, demonic cannibalism, and explosions. While all bedroom scenes take place behind closed doors, there are adult situations and mild curse words.