Captain Alexei Korolev has nothing to complain about. He has his own room in an apartment, a job in the police force that puts food on the table, and his good health. In Moscow in 1937, that’s a lot more than most people have to be grateful for. But for the first time in a long time, Korolev is about to be truly happy: his son Yuri is coming to visit for an entire week.Shortly after Yuri’s arrival, however, Korolev receives an urgent call from his boss—it seems an important man has been murdered, and Korolev is the only detective they’re willing to assign to this sensitive case. In fact, Korolev realizes almost immediately that the layers of sensitivity and secrecy surrounding this case far exceed his paygrade.