A registered parcel containing pearls to the value of £130,000 disappears between Paris and London. On arrival, the package contains sugar instead of pearls. Superintendant Rodway and Bob Marriott investigate.
| Name | Type | Role | |
|---|---|---|---|
| Ted Willis | Writer | ||
| John Barron | Guest Star | ||
| Roger Delgado | Guest Star | ||
| John Cooper | Director |