One day, Jason finds an unusual board game called Mamba. When his surfer friends start to play, the games unleashes its deadly curse, killing the losers in a gruesome fashion. Supposedly it will grant the winner a wish. As his companions die off, Jason decides that the only way he can reverse the tragedy is by continuing to play. With his girlfriend, Erica, Jason rolls the dice and hopes to make his wish before one of them suffers a horrible fate.
Unfortunately the movie Open Graves is not yet available on HBO Max.
| Directing | Álvaro de Armiñán | Director |
| Writing | Roderick Taylor | Writer |
| Writing | Bruce A. Taylor | Writer |
| Production | Antonio Cuadri | Producer |
| Production | Billy Dietrich | Producer |
| Production | Joxe Portela | Executive Producer |
| Production | Dale Rosenbloom | Executive Producer |
| Production | Bruce A. Taylor | Executive Producer |
| Production | Roderick Taylor | Executive Producer |
| Sound | Fernando Ortí Salvador | Music |
| Camera | Josu Inchaustegui | Director of Photography |
| Production | Juan Carlos Orihuela | Producer |
| Production | Richard Pagano | Casting |
| Editing | Roberto Serrano | Editor |
| Art | Koldo Jones | Art Direction |
| Costume & Make-Up | Paula Cruz | Makeup Designer |
| Costume & Make-Up | Maribel Bernales | Hairstylist |
| Costume & Make-Up | Frédéric Lainé | Special Effects Makeup Artist |
| Costume & Make-Up | David Martí | Makeup Supervisor |
| Costume & Make-Up | Aleix Torrecillas | Special Effects Makeup Artist |
| Directing | Txarly Llorente | First Assistant Director |
| Sound | Aitor Berenguer | Sound Mixer |
| Sound | James Muñoz | Supervising Sound Editor |
| Sound | José A. Manovel | Sound Mixer |
| Sound | Carlos L. Fesser | Sound Editor |
| Crew | Reyes Abades | Special Effects |
| Visual Effects | Alex G. Ortoll | Visual Effects Supervisor |
| Visual Effects | Beñat Beitia | Visual Effects Producer |
| Camera | Ibon Antuñano | Camera Operator |
