Cora of Helix Biotech is assigned a dangerous case: Silas Frost, an S-rank black panther beastkin who has spent eight years under electroshock mind control. The records paint him as a bloodthirsty threat, but what she finds is a man emptied by suffering, calm and defenseless behind a broken shell. Refusing to let him remain that way, Cora sets out to restore him and return him to the wild. Instead, the quiet beastkin begins to trust her completely, binding his heart to hers. And when she attempts to send him away, he chases her car with blood at his fangs, desperate for her not to abandon him. Now Cora stands between duty and desire, unable to sever the forbidden love that has taken root.