A family moves their troubled daughter to a small town, where people suspect she is responsible for a series of mysterious deaths. Fearing something evil followed them, the tormented parents must do whatever it takes to save their daughter.
Unfortunately the movie The Harbinger is not yet available on HBO Max.
| Production | Brandon Van Vliet | Production Assistant |
| Production | Ali Daniels | Production Assistant |
| Writing | Amy Mills | Writer |
| Writing | Will Klipstine | Writer |
| Editing | Clayton Condit | Editor |
| Production | Craig Muckler | Associate Producer |
| Production | Amy Mills | Producer |
| Production | Alexis Winter | Casting |
| Crew | Jose Zambrano Cassella | Cinematography |
| Production | Will Klipstine | Producer |
| Production | Steven Reed | Producer |
| Production | John W. Bosher | Executive Producer |
| Production | Phil Fischer | Co-Executive Producer |
| Production | Irene Bedard | Executive Producer |
| Production | Chris Charles | Executive Producer |
| Production | Tom Hambleton | Co-Executive Producer |
| Directing | Will Klipstine | Director |
