The plot is based on the true story of Leopold Socha, a sewer worker from Lvov in Poland, who sheltered Jews in the city's sewer system.
is, at first, an opportunistic SOB, who only wants to profit from his
pet Jews, but gradually becomes more and more protective of them as the situation worsens.
The people he
saves are far from squeaky clean as well, and within the confines of the sewers, the morals break down more and more as they become more desperate.