Dennis Merton is called to Ranby Hall to investigate the sudden death of racing driver Jack Maclean from a massive insulin overdose while he was under the care of Liz Merrick and Dennis's wife, Jenny. Meanwhile Vernon bumps into an old friend who offers him a gilt-edged business opportunity which leads him into serious trouble.
| Name | Type | Role | |
|---|---|---|---|
| Neil McKay | Writer | ||
| Gerry Mill | Director | ||
| Mark Jordon | Actor | PC Bellamy | |
| Julian Sims | Actor | Jack Maclean | |
| Richard Lintern | Actor | Ben Norton | |
| Stephen Critchlow | Actor | Leonard Parkes | |
| James Carlton | Actor | PC Crane | |
| Geoffrey Hughes | Actor | Vernon Scripps | |
| Beatrice Kelley | Actor | Mrs Winstanley | |
| Peter Ivatts | Actor | Gary Shaw | |
| Julie Higginson | Actor | Ruth Dalbraith | |
| Tricia Penrose | Actor | Gina Ward | |
| William Simons | Actor | PC Ventress | |
| Jo-Anne Stockham | Actor | Sarah Maclean | |
| Peter Benson | Actor | Bernie Scripps | |
| David Lonsdale | Actor | David | |
| Danny McGrath | Actor | Gareth Dodson | |
| Aislín McGuckin | Actor | Dr Liz Merrick | |
| Duncan Bell | Actor | Sergeant Merton | |
| Derek Fowlds | Actor | Oscar Blaketon | |
| Sarah Tansey | Actor | Jenny Merton |