Lieutenant Colonel Alexander Novikov moves from the capital to a small town to distance himself from his ex-wife, who ran off with his best friend. Now he lives in the house where his predecessor—who committed suicide—used to live. In his “inheritance” he gets a smart dog that interferes in everything, a neighbor who is the only employee everyone dislikes, and old unsolved cases that, it seems, are connected to the new ones. Unexplained deaths require answers to prevent someone Novikov cares about from dying.