This film explores the story of a man named Max Seed who is a mass murderer and sentenced to death by the local government. Things turn out after three attempts to shock him as he doesn't die completely. The executioner must bury that murderer alive until he dies. There seems to be a strange thing where Max was able to dig himself back to the surface in order to return to revenge.
Say what you will about Saw 3 and Hostel 2, but compared to this malignant wreck, those (yes, harsh and brutal) horror flicks have the subtext of Shakespeare and the moral compass of Superman.