The whim of fate connected the lives of the doctor Fyodor Belyaev, the adviser to justice Irina and Kuzma - a paleontologist, part-time - a witcher. Few people know that a thoughtful doctor is not a person at all. But is it really important for friends whether you are a person or a bird? Now they are investigating strange incidents together, protecting the city from the forces of evil. Meet new friends and lose old ones. And they remember. And they forget. But still, they hope.