Akane Kuritani, a young live-in caregiver, arrives at a secluded mansion deep in the mountains hoping for a fresh start. Her patient, the bedridden Kiwako Miyazono, appears more like a corpse than a living person. As Akane begins her duties, she discovers that the care required is as unnatural and dangerous as it is disturbing. What starts as an ordinary job quickly spirals into a chilling psychological horror where the lines between life and death blur in an oppressively intimate and grotesque way.