Lionel is in love with the Devil. It has taken the necromancer and police consultant a while to acknowledge it, and the impatient and overeager Lucifer didn't always make it easy for Lionel to come to terms with his emotions, but Lionel is finally in a place where he wants to open up to his boyfriend.

After some well-deserved vacation time, Lionel finds himself back at work, and he is welcomed by a potential murder case that quickly turns into a mystery he is determined to solve. Lucifer has been having his own thoughts on intimacy and sharing things, and there are small details about himself he has yet to tell his necromancer.

In-between an unusual case of corpses at the beach, Lucifer reveals his secret to the man he loves. As a result, the Devil will have to learn that a secret once revealed cannot be unmade by any deal. And Lionel will have to find a way to make his peace with the fact that loving a god and letting that god love him is just not as easy as he thought.