The police investigate the murder of a wealthy old man.
| Actor | Role |
|---|---|
 Bernard LeeSuperintendent Meredith | Superintendent Meredith |
 Lyndon BrookGerry Domford | Gerry Domford |
 Finlay CurrieHarvey Lane | Harvey Lane |
 Jennifer DanielMary Lane | Mary Lane |
 Patrick CargillBinny | Binny |
 Anthony SharpMike Hennessey | Mike Hennessey |
 Sam KyddHorace Tickler | Horace Tickler |
 Eve EdenSecretary | Secretary |
 Derrick SherwinQuigley | Quigley |
| SStanley MorganSgt. Anson | Sgt. Anson |
| HHarold ScottCrow | Crow |
| JJohn KiddMr. Hardwick | Mr. Hardwick |
| RRobert SansomPolice Doctor | Police Doctor |
 Patricia HainesPolicewoman | Policewoman |
 Clifford EarlDetective | Detective |