Hosting a new exhibit, artist Nikki Wickersham, (Lindsay Price) and her husband George Wickersham, (David Jones) are called out to Maine to sort through his father's belongings after he dies. Arriving there to find they've inherited an island with a large mansion on it, they quickly learn of an old story surrounding the house about it being haunted through the years, yet friends Margie Mancuso, (Sadie LeBlanc) and Peter Hughes, (Niall Matter) convince them to stay there anyway. While working on a special project, a series of strange events around the house has them convinced that the house has indeed a spirit roused by a secret from the past, and they work to rid it from their house before it strikes them as well.
Unfortunately the movie Secrets of the Summer House is not yet available on HBO Max.
| Writing | John Benjamin Martin | Writer |
| Writing | Donald David Martin | Writer |
| Directing | Jean-Claude Lord | Director |
| Sound | James Gelfand | Original Music Composer |
| Production | Jean Bureau | Producer |
| Production | Josée Mauffette | Producer |
| Production | Anne Carlucci | Executive Producer |
| Production | Serge Denis | Executive Producer |
| Production | Justin Bodle | Executive Producer |
| Production | Stephen Greenberg | Executive Producer |
| Editing | Carina Baccanale | Editor |
| Camera | Daniel Villeneuve | Director of Photography |
| Art | Mary Lynn Deachman | Set Decoration |
| Production | Linda Berger | Casting |
| Art | André Chamberland | Art Direction |
| Costume & Make-Up | Nicole Pelletier | Costume Design |