Fjällbackamorden: Ljusets drottning

On a clear, starry, and bitterly cold winter night, a young woman in a traditional Lucia white gown is seen running across the ice, sobbing. She stumbles in her long dress and drops her crown of candles into the snow. When she reaches a channel in the ice, she throws herself into the dark water and disappears. Meanwhile, Erica and her husband Patrik are preparing their home for their first Christmas together. On December 13th, the family attends church to watch the Lucia celebration, only to learn that Lucia has gone missing. Erica, noticing a dispute in the audience, becomes determined to uncover what the argument was about and what happened to the missing Lucia. As she investigates, the past begins to intersect with the present, revealing a secret love affair, a son seeking revenge for his mother, and the truth behind Lucia's disappearance.