A young couple move to Ho Chi Minh City (Saigon) where the husband, Thanh, is in charge of a new branch of his family's business. The wife, Thao, is expecting their first child and they have a large home in one of the city's traditional alleys. But their dream abruptly shatters one night when the pregnancy ends in a miscarriage. Though their families come to perform the funeral rites, Thao cannot cope with her grief and refuses to let her baby's coffin leave the home. Thanh begins to see a drastic change in his wife's emotional state and becomes concerned. They both realize that moving on will be harder than they had anticipated, though Thanh is at first preoccupied with difficulties at the family factory where the workers are striking. They try everything they can to move on but they are isolated as the both come from different parts of the country and have few connections in the city. And unusual encounters are afflicting them: loud footsteps at night, scratches materialize on the walls of the house, their furniture is vandalized, and brief shadows of whispering children come and go. Thao comes to believe these activities emanate from their unborn son, and she begins to gravitate to the evil forces. Thanh at first believes his wife's justifiable grief is at the root of her problems, but as the strange events increase he's forced to confront the forces he can't be sure even exist. Thao becomes almost unrecognizable as the paranormal takes over her body. Her husband sees his wife's sanity worsen every moment and is tormented by thoughts of losing her. It's a race against time to save his wife and when he finds out that the house has mysteries and secrets many wanted to forget, he must act to resolve its haunted past.