A young librarian receives a request for an obscure Hebrew book from a sinister gentleman, unaware of its contents.
| Name | Type | Role | |
|---|---|---|---|
| Mark Gatiss | Writer | ||
| Roy Barraclough | Guest Star | ||
| Louise Jameson | Guest Star | ||
| David Ryall | Guest Star | ||
| Una Stubbs | Guest Star | ||
| Sacha Dhawan | Guest Star | ||
| Eleanor Bron | Guest Star | ||
| John Castle | Guest Star | ||
| Mark Gatiss | Director |