Desc: Pora mroku: Directed by Grzegorz Kuczeriszka. With Natalia Rybicka, Karolina Gorczyca, Jakub Wesolowski, Jan Wieczorkowski. Four friends come to an old, abandoned factory in Lower Silesia, where their friend went missing a year ago. While trying to unravel the mystery of his disappearance, they discover the terrifying experiments conducted in the factory.