Having brought the apparently simple-minded Flora Keiry to London, Professor Lark and John Cornelius uncover the sinister nature of her true identity - and realize the authorities must be alerted...

Starring Peter Cushing and Vincent Price.

John Cornelius .... Peter Cushing
Curtis Lark .... Vincent Price
Flora Kiery .... Sandra Clarke
Kalman Baromek .... Steve Playtus
Ian Sanderson .... Frazer Carr
Gulliver .... William Eadle
Brigadier Sherman .... Clifford Norgates
Gwynt .... Michael Harbour

Written by Rene Basilico from an idea by Robert Holmes.

Producer: John Dyas

First broadcast on BBC Radio 4 in January 1977.