While on a summer trip with her friends, Megan begins to feel the presence of Sophie, her twin sister who recently committed suicide.
Unfortunately the movie Solstice is not yet available on HBO Max.
| Writing | Daniel Myrick | Screenplay |
| Writing | Martin Musatov | Screenplay |
| Writing | Ethan Erwin | Screenplay |
| Writing | Carsten Myllerup | Original Film Writer |
| Writing | Rasmus Heisterberg | Original Film Writer |
| Directing | Daniel Myrick | Director |
| Directing | Rhys Summerhayes | Second Assistant Director |
| Crew | Jeff Galpin | Stunt Coordinator |
| Art | Marthe Pineau | Set Decoration |
| Camera | Marcos O. Lopez | First Assistant Camera |
| Camera | Darby Newman | Second Assistant Camera |
| Directing | Kris Smith | Script Supervisor |
| Sound | Rene Defrancesch | Boom Operator |
| Camera | John T. Martin | Key Grip |
| Costume & Make-Up | Karen Toole-Rentrop | Makeup Department Head |
| Costume & Make-Up | Teresa Vest | Key Makeup Artist |
| Costume & Make-Up | Yolanda Mercadel | Hair Department Head |
| Costume & Make-Up | Betty Hamnac | Key Hair Stylist |
| Costume & Make-Up | Joe Walsh Jr. | On Set Dresser |
| Crew | Karin Justman | Stunts |
| Crew | Trace Cheramie | Stunts |
| Crew | Chris J. Fanguy | Utility Stunts |
| Crew | Holly O'Quin | Stunt Double |
| Crew | Russell Towery | Utility Stunts |
| Lighting | Keith Morgan | Gaffer |
| Crew | David J. Barker | Special Effects |
| Directing | Louis Paul Tocchet | First Assistant Director |
| Costume & Make-Up | Teresa Vest | Special Effects Makeup Artist |
| Art | Bruton Jones | Production Design |
| Production | Mary Vernieu | Casting |
| Production | Monika Mikkelsen | Casting |
| Production | James D. Stern | Producer |
| Production | Adam Del Deo | Producer |
| Production | Mason Novick | Co-Executive Producer |
| Production | Douglas Hansen | Executive Producer |
| Sound | Paula Fairfield | Supervising Sound Editor |
| Sound | Carla Murray | Sound Effects Editor |
| Sound | Todd Beckett | Sound Effects Editor |
| Visual Effects | Cedric Nicolas-Troyan | Visual Effects Supervisor |
| Camera | M. David Mullen | Director of Photography |
| Sound | Jane Antonia Cornish | Original Music Composer |