I Know What You Did Last Summer 2021 Genres: Slasher Horror, Teen Horror, Whodunnit, Drama, Horror, Mystery, Thriller, Cinematography, Jumpscares, Suspenseful, Adaptation, Character Development, Family Dynamics, Mental Health, Sexuality, Writing Country: USA Director: Duration: Episodes Vary 49 Min Year: 2021 Actors: Madison Iseman, Brianne Tju, Bill Heck, Zeke Goodman, Ashley Moore, Fiona Rene, Cassie Beck, Brooke Bloom, Sonya Balmores, Danielle Delaunay, Chrissie Fit, Spencer Sutherland, Victoria Schmidt, Jason Lee Hoy, Sterling Sulieman, Sebastian Amoruso, Eric William Morris, Maggie Lacey Storyline: In A Town Full Of Secrets, A Group Of Teenagers Are Stalked By A Mysterious Killer A Year After A Fatal Accident On Their Graduation Night. Release: October 15, 2021 (United States)