1222 metres above sea level, train 601 from Oslo careens off iced rails. Marooned in the mountains with the temperature plummeting, 269 passengers are forced to decamp to a mountain hotel. When dawn breaks one of them is found murdered. Retired police inspector Hanne Wilhelmsen is asked to investigate. But Hanne has no wish to get involved. Her pursuit of truth and justice has cost her the love of her life, her career and her mobility. Trapped in a wheelchair, trapped with a killer and by the storm outside. Then there are rumours about a secret cargo aboard train 601. For Hanne there are too many unanswered questions. What if the killer strikes again?