Most people have no idea goblins live in the woods around the small town of Bellwater, Washington. But some are about to find out. Skye, a young barista and artist, falls victim to a goblin curse in the forest one winter night, rendering her depressed and silenced, unable to speak of what happened. Her older sister, Livy, is at wit's end trying to understand what's wrong with her. Local mechanic Kit would know, but he doesn't talk of such things: he's the human liaison for the goblin tribe, a job he keeps secret and never wanted, thrust on him by an ancient family contract. Unaware of what's happened to Skye, Kit starts dating Livy, trying to keep it casual to protect her from the attention of the goblins. Meanwhile, unbeknownst to Kit, Skye draws his cousin Grady into the spell through an enchanted kiss in the woods, dooming Grady and Skye both to become goblins and disappear from humankind forever. It's a midwinter night's enchantment as Livy, the only one untainted by a spell, sets out to save them on a dangerous magical path of her own.