She lay in the frosted grass behind Frozen Falls。 Her eyes were wide open， and the wind blew her hair， ash-blond locks reflecting the blue sky。 Her face， beautiful even in death， was pale， as if the bitter cold from the mountain had drained the color from her cheeks。

On a crisp autumn day in the small town of Mount Chester， Detective Kay Sharp comes face-to-face with the past she has spent the last decade running from。 Her ex-husband， Brian， has been accused of murder。

Seeing Brian brings a flood of painful memories—he betrayed her in the worst possible way。 Yet despite her heartbreak， Kay is willing to put her career on the line to prove his innocence。

Brian is accused of killing Kay’s former best friend， Rachel—the woman he cheated on Kay with， getting her pregnant。 The blood drains from Kay’s face; she received a voicemail from Rachel two days ago。 “I hope you’ll forgive me，” she’d said， her voice fraught with tears。 “I know I have no right， but I need you。” Kay’s stomach plummets。 By the time she called back， Rachel was already dead。 Could Brian really be the murderer？

Kay faces pressure from her crime team， who don’t want her working on an investigation so close to home。 But she’s willing to risk everything—she vows to get justice for Rachel。

When Kay visit’s Rachel’s mother， she uncovers a heart-stopping discovery that makes the case even more critical: Rachel’s eight-year-old daughter， Holly， is missing。 Could the little girl still be alive？

Up against the most complex—and most personal—case of her career， can she save precious Holly before it’s too late？ And will Kay’s determination to find out the truth lead to justice—or be her undoing？