Day after day, a string of patient disappearances from hospitals continues to shock the public. Yuka Minase, investigating the case, follows the only lead: green slime left behind in the hospital room where a patient vanished. Struggling with the stalled investigation, she infiltrates the hospital alone. But waiting for her is a shocking turn of events—she is ambushed by monstrous tentacles, subjected to relentless rape and humiliation as she fights helplessly against the slimy, invasive assault.