In the darkness, the most sinister side of human nature comes to light.
An explosion, then dead silence. The body of a young man floats on the surface of a salt lake. He worked for a local television station that is filming a documentary in the salt mine in Wieliczka. Eight people went underground. Now there are only seven of them… Trapped in a labyrinth of dark passages, they try to make their way back to the surface. They struggle not only with the fear of surviving in extreme conditions, but also with the knowledge that there is probably a killer among them.
"Down there, underground, everything seems different. The salt is hard and menacing, shadows emerge from the darkness, and the human mind becomes unpredictably warped. Descend into the gloom with us. Will you come back, or will you stay there for ever?” Sobczak and Przydryga.