What Is the I Know What You Did Last Summer Twist
The twist reveals that the killer is targeting the group because they witnessed a fatal accident and fled the scene. The story follows four friends who cover up a death, only to be stalked by someone who knows the truth.
Who Is the Killer and Why They Return
The killer is driven by revenge after the friends' secret leads to tragedy. The plot uses the twist to connect each character's guilt to the attacks, turning a summer getaway into a psychological hunt.
How the Twist Shapes the Franchise
The twist sets up sequels that expand the mystery and explore consequences of the original cover-up. It also anchors the series' themes of secrets, fear, and accountability. For more background on the film, see the I Know What You Did Last Summer Wikipedia page.
