High school history teacher, Ty Anderson, has a minor online communication with a teasing student which finds him immediately fired and snaps him into a psychotic killing spree, terrorizing his former female students at their slumber party.
Unfortunately the movie After School Massacre is not yet available on HBO Max.
| Sound | Sean G. | Original Music Composer |
| Costume & Make-Up | Katie Nemec | Makeup Artist |
| Costume & Make-Up | Crystal Rodriguez | Hairstylist |
| Production | David Petovar | Executive Producer |
| Production | Michael Anthony | Associate Producer |
| Production | Seth Metoyer | Associate Producer |
| Production | Mikko Tervonen | Associate Producer |
| Production | Ziggy Hildebrand | Production Designer |
| Directing | Kamuela Kim | Script Supervisor |
| Sound | Sean Gibson | Sound |
| Crew | Ray Pichette | Stunt Coordinator |
| Art | Mystic Marlow | Props |
| Crew | Vinay Bhagat | Thanks |
| Crew | Adam Trash | Thanks |
| Crew | Stephanie Campbell | Thanks |
| Crew | Curtis Simmons | Thanks |
| Crew | Betsy Lyle | Thanks |
| Crew | Dave Knapp | Thanks |
| Crew | Tom Shadyac | Thanks |
| Crew | Darlene Bennett | Thanks |
| Crew | Fender Tucker | Thanks |
| Crew | John Cox | Thanks |
| Crew | Ian Jane | Thanks |
| Crew | Andrew Wint | Thanks |
| Crew | Nathaniel Thompson | Thanks |
| Crew | Scott Geiter | Thanks |
| Crew | Radley Metzger | Thanks |
| Crew | Randy Pearlstein | Thanks |
| Crew | James Mansfield | Thanks |
| Crew | Edward D. Wood Jr. | In Memory Of |
| Crew | Doris Wishman | In Memory Of |
| Directing | Jared Masters | Director |
| Production | Julia Faye West | Producer |
| Camera | Tim McCombe | Director of Photography |
| Writing | Jared Masters | Screenplay |
| Production | Sunny Vachher | Co-Producer |
