A janitor hired at a prestigious women's university is actually a perverted hidden camera freak. Using a hidden camera he installed in the women's restroom, he intimately records female students' excretion scenes and indulges in the pleasure. However, unsatisfied with mere hidden camera filming, he sneaks into the toilet while a woman is using it, proceeding to commit non-consensual sexual acts to heighten his excitement. This shocking development is vividly depicted.