Possessed is a 2009 Korean horror film directed by Lee Yong-ju. The story follows Hee-jin, a dedicated journalist who returns to her hometown after her younger sister So-jin goes missing. Upon her arrival, Hee-jin discovers that her sister had been possessed by a malicious spirit and that the people in the neighborhood have been dying in mysterious ways.
As Hee-jin delves deeper into the case, she uncovers a dark secret that has been kept hidden for years. The community had been responsible for committing a heinous crime in the past, which has now resulted in a curse that is affecting the present.
Meanwhile, Hee-jin's own mental state begins to deteriorate as she becomes haunted by nightmares and visions of So-jin. She is forced to confront her own inner demons as she tries to unravel the mystery behind her sister's disappearance and put an end to the vengeful spirit's reign of terror.
The film has been praised for its atmospheric cinematography, tension-building pacing, and strong performances from its cast. Possessed offers a unique twist on the traditional horror movie by blending elements of supernatural horror with a psychological thriller.