"Paranormal Activity 4" is a 2012 supernatural horror film and the fourth installment in the Paranormal Activity franchise. The story is set five years after the events of the previous film and follows a teenage girl named Alex who begins to experience strange occurrences after a mysterious boy named Robbie moves in next door. As Alex investigates the unsettling happenings, she discovers a connection to the supernatural events surrounding her family. The film utilizes found footage techniques, capturing the eerie atmosphere and building tension through its suspenseful storytelling and unexpected scares.