When the body of a young woman is discovered at an outdoor music festival, even experienced Detective Kay Hunter is shocked by the brutality of her violent death. There is no weapon, and the murderer has deliberately obscured the victim's identity. Amidst a media backlash, and faced with thousands of potential suspects, Kay must piece together the last hours of the woman's life before her killer can escape. But when Kay finds out the truth, her discovery will shake her investigation team to its core...