The film tells the story of Aya, a woman suffering from congenital heart disease who has inherited a vast fortune. She marries the seemingly gentle and considerate Haruki, only to find herself trapped in a nightmare of his brutal abuse and humiliation. Pushed to her breaking point, she eventually kills Haruki and carefully stages his death as an accident. However, her relief is short-lived, as chilling supernatural events begin to haunt the house in the wake of the crime.