I Know What You Did Last Summer (1997) is a defining 1990s teen slasher, following four friends who cover up a hit-and-run accident—only to be stalked a year later by a mysterious hook-wielding killer. With its mix of urban legend horror, Final Girl survival, and glossy teen thriller style, the film became a post-Scream cult hit and launched a franchise.

I Still Know What You Did Last Summer (1998) continues the 90s slasher franchise, with survivor Julie (Jennifer Love Hewitt) lured to a Caribbean island resort where the hook-wielding killer returns. Isolated by storms and cut off from escape, the film amplifies its slasher tropes, Final Girl suspense, and vacation-gone-wrong horror in a tropical setting.

I’ll Always Know What You Did Last Summer (2006) is the direct-to-video continuation of the slasher franchise. After a group of teens accidentally cause a friend’s death during a prank, they swear to keep it secret—only to be hunted by the hook-wielding killer a year later. Leaning into urban legend horror, slasher clichés, and small-town paranoia, the film reimagines the fisherman’s curse for a new generation.

Leatherface had his chainsaws, Freddie has his glove... now there's a new slasher icon, and he's got a hook. In I Know What You Did Last Summer a group of kids pay the price for not reporting a hit and run a year later when their victim comes back for revenge, apparently from beyond the grave, and he doesn't finish with them then, chasing down the survivors for more slicing and dicing in I Still Know What You Did Last Summer. And if that wasn't enough, he finds all new targets for more hook-heavy payback in I'll Always Know What You Did Last Summer.