In a secretive Murkoff facility, two patients, Mitochondria and Yuriko, unknowingly sign up for an experimental trial that quickly spirals into horror. As the facility descends into chaos with disturbing variants, they must navigate the dark hallways, avoid deadly threats, and uncover the horrifying truth behind the experiments. In a desperate bid for survival, they fight their way to the exit, hoping they've escaped the nightmare. But did they truly escape, or are they still trapped in Murkoff's grasp?