The Twelfth Department

In Moscow during 1937, Captain Korolev, a police investigator, is thrilled to reunite with his son, Yuri, but their time together is disrupted when a prominent scientist is assassinated near the Kremlin. As Korolev delves into the case, he uncovers the victim's ambitious research, which attracts the dangerous attention of high-ranking Soviet officials. With another scientist's murder complicating matters and evidence disappearing, Korolev navigates a perilous conflict within the NKVD, all while desperately searching for his missing son.