The Grudge (2004)
The film was followed by two sequels, theatrically released The Grudge 2 (2006) and straight-to-video The Grudge 3 (2009). A sidequel, also entitled The Grudge (2020), takes place concurrently with the events of this film and its two sequels.
The Grudge describes a curse that is born when someone dies in the grip of extreme rage or sorrow. The curse is an entity created where the person died. Those who encounter this supernatural force die, and the curse is reborn repeatedly, passing from victim to victim in an endless, growing chain of horror.