It was life as usual for half-Demon Avery Tywella when she chases a Demon convicted of murder into a local club. As an agent of the Human's Rights task force it is her duty to execute any "Other" proven to harm or cause harm to humans. But her actions in Halo attract the attention of Jared Damascus, the lead singer of local rock band sensation Darkened. A night of clubbing with her friend leaves her with unwanted attentions from, not only, a Fallen Angel but a psychotic murderer. Now, with a Fallen bodyguard at her side she has to find and eliminate her perp before he kills again. And, it will take the help of Jared and his band of vigilante crime fighters to take out this crazy Angel so she can get back to her life before she does something she regrets with a certain hot rock star.