Young Vera builds a snowman in the castle's back courtyard. Overnight, the snowman Linden gains consciousness and becomes a cold, fragile man. Through the harsh winter, the two keep each other's company in secret, exploring the ancient mystery behind a spiral symbol and learning that snow spirits cannot escape the fate of melting in spring. As spring draws near and Linden's body keeps dissolving, they set out on a journey of origins — between meeting and parting, they seek the meaning of existence, completing a gentle, fated tale that belongs only to winter.