I Know What You Did Last Summer (1997) The sun-kissed summer nights of 1978 were filled with laughter, music, and the promise of forever friendships for four high school students: Julie James, Helen Shivers, Barry William Cox, and Ray Bronson. As they celebrated their graduation, a fateful night took an unexpected turn when they stumbled upon a pedestrian lying injured on the road. In a split-second decision, they panicked and fled the scene, leaving behind a lifeless body. As the days passed, the group's guilt-ridden conscience grew heavier, and they concocted a plan to keep their secret hidden from prying eyes. They disposed of the evidence, vowing to never speak of that fateful night again. But as the months went by, an eerie presence began to stalk them, sending anonymous letters and gruesome mementos as reminders of their dark deed. A year later, Julie, now a college freshman, is plagued by nightmares and an unshakeable sense of dread. Her friends, too, are experiencing strange occurrences, each receiving cryptic messages that seem to know their deepest secrets. The group's attempts to brush off the events only serve to heighten their anxiety as they begin to suspect that someone – or something – knows what really happened on that fateful night. As the summer unfolds, Julie and her friends find themselves entangled in a web of terror and deception. They must confront the darkness of their own past and face the terrifying reality that the consequences of their actions are far from over. As the noose tightens around their necks, they realize that some secrets are better left buried. With its blend of teen angst, suspense, and slasher movie tropes, I Know What You Did Last Summer became a box office hit and launched the careers of its young cast, including Jennifer Love Hewitt, Sarah Michelle Gellar, Ryan Phillippe, and Freddie Prinze Jr. The film's success spawned two sequels and cemented its place as a cultural phenomenon of the late 1990s.