Murder mystery in a boarding house based on a Wilkie Collins story.
| Actor | Role |
|---|---|
 Michael CrawfordConstable Gough | Constable Gough |
| FFelicity GibsonPriscilla Smith | Priscilla Smith |
 Gwen Ffrangcon DaviesMiss Mybus | Miss Mybus |
 Reginald MarshInspector Pennycuick | Inspector Pennycuick |
 William LucasSergeant Gribble | Sergeant Gribble |
 Pauline DelaneyMrs. Crosscapel (as Pauline Delany) | Mrs. Crosscapel (as Pauline Delany) |
 John NormingtonMr. Cramber | Mr. Cramber |
| CCalum MillDr. Macleish | Dr. Macleish |
| PPamela MoiseiwitschMrs. Jane Zebedee | Mrs. Jane Zebedee |
 Tim CurryCrosscapel | Crosscapel |
| JJill RichardsBetsy | Betsy |