When Aria Sorrow orders a vintage-looking hairpin from an anonymous online seller, something strange happens to her life. As a legion of demons starts to haunt and torment Aria, her physical, mental, and emotional well-being rapidly decline. This is when Alistair "Crowe" Rosario steps in to take the matter into his hands. As one having the gift of discernment (of spirits), she saves Aria in time from her deliberate possession. Over and done, Aria thinks all will be back to normal, but she'd soon realize that it is only the beginning of a much larger quandary.