"Paranormal Activity 3" is a 2011 supernatural horror film directed by Henry Joost and Ariel Schulman. It serves as a prequel to the first two films in the Paranormal Activity franchise, exploring the childhood of sisters Katie and Kristi. Set in 1988, the story follows the girls as they encounter strange occurrences in their home, leading to terrifying events. The film utilizes a found-footage style, featuring a mix of handheld cameras and surveillance footage. As the sisters and their family investigate the paranormal phenomena, they uncover dark secrets about their past, ultimately connecting to the demonic entity that haunts them throughout the series.