Mesu wo Karu Mura

A group of female astronomy club students and their teacher head to a remote highland lodge for a training camp. When their car breaks down, they are helped by local villagers and invited to their village. Unbeknownst to them, the village harbors a sinister tradition of capturing outsider women to become brides. To protect her students, the beautiful teacher sacrifices herself, but overwhelmed by relentless torment, she loses her sanity and offers her students as substitutes. Meanwhile, the three students left in a storehouse are stripped, bound, and subjected to repeated assaults, their bodies and minds breaking as they are reduced to mere objects of desire.