"Jennifer's Body" is a 2009 horror-comedy film directed by Karyn Kusama. The story follows Jennifer Check, a high school cheerleader who becomes possessed by a demon after a failed ritual. As a result, she begins to prey on her male classmates, leading to a series of gruesome murders. The film stars Megan Fox as Jennifer and Amanda Seyfried as her best friend, Needy Lesnicky. It explores themes of friendship, betrayal, and the complexities of female relationships, while also incorporating dark humor and social commentary on teenage life.