Russia 1948. Stalin is purging everyone he sees as a threat. Gulags and shallow graves are full of writers, scientists, artists, journalists, politicians, academics and poets. Ludmila Sirotovska, a young militia officer, comes to a remote outpost in Central Siberia to investigate a murder. On the trail of a vicious serial killer dubbed The Wolfman, she uncovers a crime against the Soviet state. The suspects are a father and daughter research team working on the domestication of wolves. As winter and the killer close in, Ludmila makes a disturbing discovery about herself.