Lily's never needed anyone but herself. So when Lucifer decides to stick around topside because he thinks she needs his protection, he's sadly mistaken. Sure the sparks fly between them, his touch drives her insane, but she's lived without him for seventeen years, she can learn to live without him again.

But as she navigates a new relationship with a daughter she barely knows, she begins to rely on Lucifer in a way that makes her vulnerable. And in this shadow world she lives in, vulnerability kills. Demons lurk. Vampires watch. And heavenly creatures cross the line.

As forces gather against them, Lily can't help but ask herself, can she survive this new family unit without losing her life? Or worse yet, the lives of those she loves.