It is based on Robert Marshallâ€™s book In the Sewers of Lvov, which chronicles the true story of Polish sewer worker Leopold Socha, who risks execution to hide a group of Jews for 14 months until the war ends.
But as the Jewsâ€™ money inevitably runs out, Socha
becomes less interested in the business arrangement and sacrifices more and more to keep them hidden and alive.
Very little is known of the real-life Leopold Socha
, and despite the artistic licence here, he
stills feels a rather opaque character.