The I Know What You Did Last Summer series premieres on Amazon on October 15. The first four episodes will drop all at once, and the other four episodes will come out the subsequent Fridays. The series stars Madison Iseman, Brianne Tju, Ezekiel Goodman, Ashley Moore, Sebastian Amoruso, Fiona Rene, Cassie Beck, Brooke Bloom, Sonya Balmores and Bill Heck.
