Paul Temple is called in to help Scotland Yard track down a serial killer who has murdered several wealthy women.
| Actor | Role |
|---|---|
 John BentleyPaul Temple | Paul Temple |
 Dinah SheridanSteve Temple | Steve Temple |
 Margaretta ScottMrs. Barbara Trevellyan | Mrs. Barbara Trevellyan |
 Alan WheatleyEdward Lathom | Edward Lathom |
 Abraham SofaerDr. Charles Kohima | Dr. Charles Kohima |
| CCelia LiptonNorma Rice | Norma Rice |
 Jack RaineSir Graham Forbes | Sir Graham Forbes |
 Hugh PryseWilfred Davies | Wilfred Davies |
 John McLarenLeo Brent | Leo Brent |
 Ian McLeanInspector Crane | Inspector Crane |
 Merle TottenhamMillie | Millie |
 Wally PatchSpider Williams | Spider Williams |