The Secret Archive of Korsakov. Occult Detective

In late 19th-century St. Petersburg, a mysterious criminal connected to the otherworldly realm is active. Vladimir Korsakov, at first glance an ordinary city rake, turns out to be capable of uncovering these secret crimes. He sets out to find an artist who draws cursed portraits, investigates the disappearance of mediums in a manor house, and also investigates a murder at a military school. Rumors say there is a vengeful phantom cadet who may be the cause of his death.