Gorod tain – The TV series "City of Secrets" is a Russian adaptation of the Korean detective drama "Stranger". Alexey Platov is an investigator with an unusual condition - he lost the ability to feel anything after a childhood brain injury. Now, Leshka is fearless, unflappable, and lonely, which influenced his choice of profession. One day, the hero goes to gather compromising material on a powerful businessman, only to find him murdered. Also present at the scene is young Lieutenant Polina Lavrova. Together, they embark on an investigation.