One matriarch. One powerful family. And one very suspicious fall.

If you've spent your entire life running your family as ruthlessly as you've run the family business, it is perhaps not the best idea to gather them all on a cold and dark remote island to celebrate your 80th birthday. At the very least, it makes for a tense dinner party. And at worst...

When Margrethe Cullenberg-Franzén falls to her death during her birthday celebration, Ian Ahmed is convinced it's murder. Trapped in a wintry landscape of muted colors and creeping shadows, he and novelist Berit Gardner struggle to unravel the toxic family secrets behind Margrethe's imposing legacy. As winter deepens and the ice seals the islands in silence, the question echoes louder: Who stood to gain the most from the matriarch's fall? And how long before the killer strikes again?