Умножающий печаль (季节 1)

A faithful Horse, a Cunning Dog, a Lively Cat — that's what they called each other since childhood. They are Interpol officer Sergei Ordyntsev, the "oligarch" Alexander Serebrovsky and Konstantin Boyko, the Olympic biathlon champion. Once upon a time, three classmates played Indians and thought that their friendship would last a lifetime.