A well-known actor is murdered. Another performer becomes an amateur sleuth so she can prove her sister is innocent of the crime.
| Actor | Role |
|---|---|
 Camilla HornSonia Vance | Sonia Vance |
 Miles ManderHarley Travers | Harley Travers |
| MMarguerite AllanChristine Vance | Christine Vance |
 Viola KeatsGladys Wheeler | Gladys Wheeler |
| AAnthony HankeySir Brian Greville | Sir Brian Greville |
 Hay PetrieMr. Clappit | Mr. Clappit |
 Margaret YardeMrs. Clappit | Mrs. Clappit |
| AAlbert WhelanBarlow | Barlow |
| BBarry LiveseyBert | Bert |
 John TurnbullInspector North | Inspector North |