It's the start of Stalin's Great Terror, and Moscow is caught in a web of fear as citizens inform on their neighbours for not following Party ideals. When a young woman in tortured to death, her body left on the altar of a church, Captain Alexei Dimitrevich Korolev is ordered to hunt down her killer. But the further he delves into the troubling case, the more the evidence points to someone within the NKVD - the most feared organisation in Russia.
I don't know a lot about Russian history, and I found this novel to be very atmospheric and interesting, informative without being too academic. The sense that at any time an individual could be accused of being an enemy to the people and sent to prison is palpable. Korolev is a good Communist citizen, but not a Party member, and his struggle to reconcile his beliefs with the new national ideals is well portrayed. He was formerly a religious man, before religion became a disease and churches were assigned new purposes.
The killings are brutal, but not described in bloody detail, and they become part of the background as the story takes on a political edge. This is a slow burn novel, rather than a page turner, but there are twists within the plot. I sometimes found it hard to keep track of some of the characters, and got names a bit confused, but that's only a minor issue. Korolev is a great character, and I'd like to read more books with him as the central character.