Secret government experiments go horribly wrong when mysterious bacteria produce a deadly half-human, half-rat mutant. After the creature murders the lab technicians, authorities conspire to cover up all wrongdoing. But the noxious microorganisms leak out and the truth comes to light with gruesome consequences. Daisuke Ryu, Yoshiyuki Kubota and Mika Katsumura star in this Tokyo shocker from director Kanta Tagawa.