Sarah is a wild canine specialist, trying to make sense of her life after a break-up, when she meets the handsome Kai, and his rich playboy brother Tristan. When she accepts a date with the over-confident Tristan, she has no idea what events are about to unfurl. Kai tries to tell her that all three of them are werewolves, and that his bite has activated her wolf, but she is quick to dismiss it as the ravings of a madman. When it is proven to be true, she finds herself imprisoned by the brother he had tried so desperately to warn her about. As a pureblood female werewolf with the factor in her blood, she is both rare and powerful, the only werewolf born in centuries that is capable of reproducing.
Trying to navigate a strange new world where the need to find a mate dominates the three days of the full moon period, she finds herself drawn towards Kai, without being able to resist the attentions of his brother. The pack is thrown into turmoil by her arrival, with the males competing for her attention. All she wants is to learn how to control her wolf, and go back to living her life, but Tristan has other ideas.
When the enigmatic Caleb comes on the scene, she is plunged into further confusion. Why is she so drawn to him, and why does he seem so familiar? What secret is he trying to hide from her, and can she trust him? Why is Caleb's brother also interested in her, and why does she get the feeling she can't trust him? She is tired of all the male attention, and wishes her wolf would make her mind up over which potential mate she truly fancies. Her wolf is acting purely upon instinct, however, and her own body is causing her to feel things she has never felt before. Sarah's human mind is equally confused, when she realises that she is in love with both Kai and Caleb. Her path is unpredictable, however, and the answer to her dilemma of choice, will be one that takes even her by surprise.