Prosta Sprawa plot
A man travels to the city of Jelenia Góra, situated in the picturesque but bleak Polish Giant Mountains (Karkonosze). His goal is noble and straightforward: he wants to repay an old debt to a man named Prosty. Years ago, Prosty selflessly helped him out of a tight spot when he needed money, and now it is time to avenge that favor and restore his honor. Upon arrival, however, the situation turns out to be anything but a "simple matter." Prosty has vanished without a trace, and his apartment has been ransacked. It turns out he has gotten into deep trouble with the ruthless local mafia boss, Kazik.