Łukasz, an unemployed geography graduate, is wrongfully arrested for robbery. His alibi is weak, and he is identified during a lineup. The situation gets hopeless when, a few hours later, the alleged victim suddenly dies. The defense lawyer promises to do everything in his power, but Łukasz ends up in custody. He must find his place in a world of harsh prison rules. He chooses the cell of the “grypsujący” (inmates who communicate by coded messages)…