Looking for a fresh start after a miscarriage, a couple find themselves being gifted the house of their dreams with one caveat – they can never open the cellar door. Whether they can live without knowing triggers shocking consequences.
| Actor | Role |
|---|---|
 Jordana BrewsterSera | Sera |
 Scott SpeedmanJohn | John |
 Laurence FishburneEmmett | Emmett |
 Addison TimlinAlyssa | Alyssa |
 Chris ConnerPaul MacManus | Paul MacManus |
 Randy SchulmanSteven | Steven |
 Katie O’GradyKathryn Conrad | Kathryn Conrad |
 Zach FeinerZach | Zach |
 Jenny Lam TienJohn's Coworker | John's Coworker |
 Jesaar LandavasoHappy Client (as Jesse-Aaron Landavaso) | Happy Client (as Jesse-Aaron Landavaso) |
 Kiah ButtsKiah - Executive Secretary | Kiah - Executive Secretary |
| KKyle StoltzExecutive - HR Dept. | Executive - HR Dept. |
| SSusannah MarsJeannie | Jeannie |
 Matthew SunderlandMale Party Guest | Male Party Guest |
| AAngela ChandraFemale Party Guest | Female Party Guest |
 Allen NauseAdmin Clerk | Admin Clerk |
 Cycerli AshDetective Stark | Detective Stark |
| DDon AdlerDetective Weiland | Detective Weiland |
| NNaiya AmilcarFemale Shower Guest | Female Shower Guest |