As they celebrate their high school graduation, four friends are involved in a hit-and-run accident when their car hits and apparently kills a pedestrian on an isolated roadway. They dispose of the body and vow to keep the incident a secret, a year later somebody starts sending them letters bearing the warning “I Know What You Did Last Summer”.
![7OfTWTQEvPcwPrOdeLH0F3h6GRZ](https://r2.g-cdn.top/wp-content/uploads/2021/08/7OfTWTQEvPcwPrOdeLH0F3h6GRZ-60x90.jpg)