Ju-on

The Ju-on follow the lives of the people affected by a curse created by a murdered housewife in a house in Nerima. It was said that when one person dies with a deep and burning grudge, a curse is born. The curse gathers in the place where that person has died or where he was frequent at (in the series's case, the house in Nerima) and repeats itself there. The curse manifests on those who encounter the curse by any means, such as entering the house or being in contact with somebody who was already cursed. The curse's manifestation is mainly death, where the victims' bodies may or may not disappear. The following deaths create more curses and spreads the curse in other places. This concept was further extended in Ju-on: The Grudge where the curse caused the end of humanity.