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.