Will adventure become the worst nightmare ever? Some college students let their teachers persuade them to take risks in the anti-atomic bunker in order to obtain useful information for their papers. The temperament and diversity caused by girls' different social backgrounds is an interesting weekend, but also a complex weekend. An insidious guard accompanied them to the center of the bunker, which is considered to be one of the safest places in the world, and they will not be able to leave within 24 hours. In surprise and uneasiness, the women camped in a stinky temporary dormitory. But in the evening, two of them disappeared. The teacher Nora is responsible for coordinating the research, which will soon draw this group into a deadly vortex, which is created by the madness of a vicious anthropophagus, who disfigures and engulfs them one by one with unprecedented violence.