After ten years, James is fed up with his boring marriage, but his wife, Caroline, still loves him. As he walks out on her, she warns: ""I'll never divorce you."" James's lawyer advises him that the best way to avoid years of delay is to catch Caroline being unfaithful. So James hires a private eye to follow her for a whole day, up to midnight, with little hope that it will do him any good - and he gets a surprise.
| Name | Type | Role | |
|---|---|---|---|
| Roy Russell | Writer | ||
| Keith Edwards | Guest Star | ||
| Wilfred Grove | Guest Star | ||
| Meg Davies | Guest Star | ||
| Roger Rees | Guest Star | ||
| Anna Maria Macchi | Guest Star | ||
| Jim Norton | Guest Star | ||
| John Castle | Guest Star | ||
| John Jacobs | Director | ||
| Nicholas Monsarrat | Director |