A lonely writer, disillusioned with her talent, makes a bet that she can write a best-selling crime novel in thirty days. For inspiration, Hannah goes to Iceland, where she stays with the hospitable Ella in the small fishing village of Husafjordur. A few days later, Ella's nephew Thor is fished out of the water, lifeless. Thor, like many in the village, was the son of a fisherman, but suffered from a severe fear of water. How could he drown in this case? Who killed the boy? Having found interesting material for writing a detective story in what is happening, Hannah begins to write a novel based on fresh tracks, but realizes that solving the mystery will be more difficult than she imagined. The investigation is drawn into a tight knot, more and more evidence is discovered: strange testimonies from local residents, police actions, an attempt on Hannah’s life and a request to stop the investigation... A strong snow storm does not allow Hannah to leave the terrible place and completely immerses her in a series of inexplicable murders.< /p>