How many jumpscares are in I Know What You Did Last Summer?

I Know What You Did Last Summer has 13 jumpscares (1 major, 12 minor).

What is the first jumpscare time in I Know What You Did Last Summer?

The first jumpscare appears at 00:10:38.

I Know What You Did Last Summer

Name: I Know What You Did Last Summer
Genre: Horror, Mystery, Thriller, Action, Adventure
Released: 2025-07-16
Duration: 1 h 51 min
Rating: 5.8

I Know What You Did Last Summer

2025

5.8/10553 votes

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Runtime: 1h 51m

Genres: Horror, Mystery, Thriller, Action, Adventure

Jumpscare Analysis

Here is the complete list of jumpscare timestamps for I Know What You Did Last Summer. We found 13 jumpscares in this movie, including 1 major ones. The first scare happens at 00:10:38. Use our timing guide to prepare for the scariest scenes.

Synopsis

When five friends inadvertently cause a deadly car accident, they cover up their involvement and make a pact to keep it a secret rather than face the consequences. A year later, their past comes back to haunt them and they're forced to confront a horrifying truth: someone knows what they did last summer…and is hell-bent on revenge.