A 2012 film titled House on the Hill is actually based on the horrific real-life murder spree of serial killers Leonard Lake and Charles Ng in the 1980s.
While researching haunted houses, Shirley Jackson found a picture of a California mansion with a "diseased and decaying" air. When she asked her mother about it, she was shocked to learn that her own had built that very house. The house was eventually burned down by townspeople who believed it was cursed. 2. The Winchester Influence House on the Hill
In a chilling personal anecdote, Jackson awoke one morning while writing the book to find a note on her desk that said in her own handwriting. Though she attributed it to sleepwalking, it deeply unnerved her and fueled the psychological intensity of the novel. 4. Real-Life Psychic Researchers A 2012 film titled House on the Hill