Ju-on: The Curse

Jealous of his wifes love for another man, a teacher from her high school, a man brutally kills his wife and young son. Searching for the son who has missed a lot of school, the teacher enters their house, only to find the dead ghost of his mother, and consequently has a heart attack and becomes a ghost himself. The story goes on to tell of the new tenants of the house and what they experience.