A 50 year-old nebbish debt collector, Yuji, is having a pretty bad week. He struggles to collect from the debtors and is constantly being scolded by his boss. His aging mom is begging for money but he just maxed out his bank account. On top of everything, he is diagnosed with cancer and told he has a few months to live. Yuji tries to turn his life around and he meets a young and beautiful Kaoru. However, a giant alien jar falls from the sky and traps thousands of people inside. Soon after, aliens begin to parasite to human beings and changing their form into hideous monsters: Necro-borgs. The Necro-borgs fight one another to the death. Yuji somehow manages to retain his human consciousness and joins forces with a team of cops to save Kaoru from a city full of Necro-borgs.
