A young couple was joyfully adjusting to their new life in a roomy house until they suffered the heartbreak of a miscarriage. Devastated by the loss, Thao is unable to part with her baby’s remains, keeping them in the house. Her grip on reality begins to slip as she is plagued by horrifying visions. Meanwhile, her husband, Thanh, encounters bizarre occurrences within their home. As Thao’s behavior becomes increasingly hostile towards him, Thanh must urgently unravel the mysteries hidden within the alley’s house to save both their sanity and their lives.