In the small town of Vernon, on October 27, 29, and 31, 1987, three teenage girls named Tiffany Clark, Marisa Song, and Heather Hernandez were killed by the Sweet 16 Killer, each having been stabbed 16 times on the nights of their 16th birthdays.
In the present day of 2023, teenager Jamie Hughes goes to a concert with her friend Amelia on Halloween night while her mother, Pam, stays at home. Pam used to be friends with the three victims of the Sweet 16 Killer, and while handing out candy, she is attacked by the killer, who stabs her to death. As Jamie grieves Pam’s death, she helps Amelia put the finishing touches on a time machine she created for a school project and is approached by reporter Chris Dubasage, who tells her that Pam received a note from the killer that she kept secret: “You’re next, one day.”
Starring; Kiernan Shipka, Olivia Holt, Charlie Gillespie, Lochlyn Munro, Troy L. Johnson, Liana Liberato, Kelcey Mawema, Stephi Chin Salvo, Anna Diaz, Ella Choi, Jeremy Monn-Djasgnar, Nathaniel Appiah, Jonathan Potts, Randall Park, Julie Bowen,
