Пятый канал

Russian detectives unwind the ball of the most intricate and cruel crimes. They are consummate professionals, the best cops in town. Even on the most dangerous missions, this quartet never loses their sense of humor. It is it that helps them find the most incredible ways out of any situation. They uphold the law and emerge victorious.

The series concerns the everyday lives of the operatives of the "murder" department of the Petrovsky District Department of Internal Affairs of St. Petersburg.

A poker player and expert in psychology investigates cases in an unorthodox way.