Ju-On is a Japanese horror film series created by Takashi Shimizu. The franchise began with the original film released in 2000, which tells the story of a cursed house where a violent event has occurred. This curse affects anyone who enters the house, leading to terrifying encounters with vengeful spirits. The series is known for its unique storytelling style, often presenting events out of chronological order. It has spawned several sequels, remakes, and spin-offs, including the American adaptation titled The Grudge. Ju-On has become a significant influence in the horror genre, particularly in the portrayal of supernatural themes.