Blumhouse s latest horror flick, "Totally Killer," introduces a unique twist: time travel mixed with the slasher genre. In 1987, Pam barely survived the Sweet Sixteen Killer. Now, her daughter Jamie faces the same threat, leading to a time-travel confrontation. The movie stars Kiernan Shipka, Julie Bowen, Olivia Holt and more. Premiering on Amazon Prime Video, it s set for release on October 6.