For once, business is booming at the Randall and Hopkirk office. An insurance company hires Jeff to investigate the disappearance of a shipment of diamonds. At the same time a real estate agent hires Jeff to sort out rumors about Merston Manor, a house scheduled to go on the real estate market, being haunted.
| Name | Type | Role | |
|---|---|---|---|
| Tony Williamson | Writer | ||
| Garfield Morgan | Guest Star | ||
| Judith Arthy | Guest Star | ||
| Dermot Kelly | Guest Star | ||
| William Kendall | Guest Star | ||
| Carol Rachell | Guest Star | ||
| Duncan Lamont | Guest Star | ||
| David Sinclair | Guest Star | ||
| Terry Duggan | Guest Star | ||
| Keith Buckley | Guest Star | ||
| John Kidd | Guest Star | ||
| Jeremy Burnham | Guest Star | ||
| George A. Cooper | Guest Star | ||
| Peter Jones | Guest Star | ||
| Ray Austin | Director |