Tom Hardy (The Dark Knight Rises) and Noomi Rapace are in talks to star according to Deadline. They also had the following plot synopsis.
Child 44 takes place in Stalin’s Soviet Union, and Hardy plays a security officer and war hero who believes in the Soviet system and the law. That is until he uncovers the existence of a mass murderer, and he is thwarted by that system he has sworn to serve because they have no interest in acknowledging that murders are taking place in a country perpetuating the myth of a crime-free utopia. The book is part of a trilogy.
Sounds intriguing and Hardy is always great to watch.