Katreena Lightfoot is a werewolf in search of the witch who killed her father, but on the night of her 21st birthday, she meets Kazrium. A demon who she's instantly drawn to. When a strange mark appears on her wrist and demons attack her to claim her soul; he intervenes, making her a part of his life. Kazrium is a demon wandering aimlessly through hell. To curb his boredom, Lucifer assigns him a mission: to discover who wants to overthrow the dark lord. One night above world, he meets Katreena at a supernatural nightclub and suddenly his mission shifts to doing whatever he can to protect her. While in hiding, sparks fly between the two of them. As they uncover her past, more questions arise than answers. How long will they have before the demons or the truth catches up to them?