Netflix's 'Delusion' Explores Dementia and Demonic Possession

Netflix's new thriller, "Delusion," originating from Thailand, delves into the profound difficulties families face when caring for elderly relatives with dementia. The series introduces a supernatural element, suggesting that the afflicted individual might be possessed by a murderous spirit.

The narrative centers on Wan, who is attending a reception for her ex-husband's company when she receives a distressing call from her mother. Her father, Narong, who has been diagnosed with dementia, is exhibiting erratic and aggressive behavior, reportedly stalking the house with a knife. Wan leaves the event with her son to go to her parents' home.

Narong eventually disappears and is found by Detective Pete. At the hospital, Wan learns about her father's dementia, which explains his unpredictable actions. However, the local community holds a different belief: that Narong is possessed by a spirit known as Phii Pong, a malevolent entity said to kill people. Wan's brother, Wat, a doctor, dismisses the supernatural theory, attributing Narong's behavior to his illness. Wan herself is skeptical, though her mother entertains the possibility of possession.

Directed and co-written by Chayan Laoyodtrakool, "Delusion" is noted for its slow build in the initial episodes, establishing a central conflict between rational understanding and communal belief. The family grapples with Narong's dementia while confronting the townspeople's conviction of his possession. The situation intensifies as disappearances and deaths occur, fueling the town's suspicion towards Wan's family.

The series raises questions about accountability when actions are committed by someone with diminished mental capacity, and how easily a supernatural explanation can overshadow a medical diagnosis, particularly in the face of extreme events like missing children. The performance of Natapohn Phornprapha as Wan is highlighted for portraying a character maintaining composure under immense emotional strain, managing her son's needs and her father's illness amidst growing external pressure.

The story begins with Narong appearing to stare directly into the camera of a dropped tablet, a device belonging to Aim, Wan's son, who was searching for his grandfather in the woods. The series is described as having a feel similar to supernatural thrillers like "From."