When a mysterious letter reaches Ormond Castle, Grace cannot ignore the desperate plea from her distant aunt. Defying all warnings, she embarks on a journey to a remote and haunted land, determined to aid a clan teetering on the edge of ruin.

Upon arrival, Grace discovers a castle shrouded in shadows and secrets. The Laird is dead under mysterious circumstances, and his brother Simon has vanished without a trace. Legends whisper that Simon is no ordinary man, and finding him becomes Grace's unwavering mission.

Deep in the untamed wilderness, she encounters Simon—a towering figure of unmatched strength, living like a savage among a forsaken clan. Convincing him to return is no easy task, and piercing the armor around his heart feels like chiseling away at solid stone.

As Simon finally agrees to descend from the mountains, a series of tragedies unfolds. With danger closing in, Grace recalls her sister Mary's haunting words: "Dinnae be so trusting, Gracie..." Now, she must question everyone around her—and herself.

Can Grace unravel the mysteries before it's too late? Or will the shadows of betrayal consume them all?