The phrase "I Know What You Did Last Summer" refers primarily to a 2025 American slasher film. This film is the fourth installment in the franchise, a sequel to the earlier films including "I Still Know What You Did Last Summer" (1998). The story is about a group of friends who cover up a deadly car crash and then face the consequences as a hook-wielding killer targets them one year later. The film features actors like Madelyn Cline, Chase Sui Wonders, and Freddie Prinze Jr., with the latter reprising his role from the original film. It was released in theaters on July 18, 2025, and became available for digital streaming in late August 2025. The plot involves the group's effort to confront their past and the threatening killer, linking back to events from the 1997 original story.
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