Bodies drained of blood are scattered around New York City. With a serial killer on the loose, Mackenzie Grey is obsessed with solving the murders. She dives into her work at the Supernatural Investigative Unit to forget about the events that dismantled her Pack a year ago. When the killer makes Kenz the target, she falls down the rabbit hole and discovers she has a lot more to do with these murders than she realized.

As her past creeps up behind her, she must swallow her pride and seek aid from old and new friends.

In the epic finale of the Mackenzie Grey: Origins series, she will finally become the wolf she is destined to be . . .

Contains mature themes.