While most horror movies are complete works of fiction, the genre occasionally offers up stories that are based on terrifying and jaw-dropping real-life events, like the nine collected here. The Amityville Horror (1979)Premise: A young family moves into a house where a murder was committed, and experiences strange and terrifying occurrences. Real-Life Inspiration: Based on the book of the same name, The Amityville Horror follows the paranormal events that terrorized the Lutz family. Real-Life Inspiration: Based on Jack Ketchum's novel of the same name, The Girl Next Door is based on the murder of Sylvia Likens, a 16-year-old girl from Indiana in 1965. One thing I had never explored was the chance to tell a story that’s based on real-life characters, real-life people.