Sarah grows up with mentally ill parents, and an unexpected pregnancy pushes her toward what she thinks is a normal life with her boyfriend. A frightening episode causes her mental state to fray until she uncovers the truth behind her delusions.
| Actor | Role |
|---|---|
 Oona ChaplinSarah | Sarah |
 Lucy FlemingMrs. Wellington | Mrs. Wellington |
 Calum GittinsNot listed | Not listed |
 Austin HardimanHenry | Henry |
 Bernard HillNot listed | Not listed |
 Rosie JonesNot listed | Not listed |
 Rose McIverNot listed | Not listed |
 Reece RitchieNot listed | Not listed |
 Jill WinternitzAlice Drew | Alice Drew |