Slasher riffs and parodies date again almost so long as slashers themselves, dissecting the enduring tropes and acquainted formulation. In Hell of a Summer, first-time administrators/writers Finn Wolfhard (“Stranger Things”) and Billy Bryk (Ghostbusters: Afterlife) body their slasher riff as a buddy comedy from the angle of teenagers, aimed solely at teenagers. The administrators’ performing backgrounds translate to an ensemble