Berlin, 1946. During one of the coldest winters on record, Pavel Richter, a decommissioned GI, finds himself at odds with a rogue British Army colonel and a Soviet General when a friend deposits the frozen body of a dead Russian spy in his apartment. So begins the race to take possession of the spy's secret, a race which threatens Pavel's friendship with a street orphan named Anders and his budding love for Sonia, his enigmatic upstairs neighbour. As the action hurtles towards catastrophe, the hunt merges with one for the truth about the novel's protagonist: who exactly is Pavel Richter?