She Fell Among Thieves - 1978 - 6/10

And the chief thief, her wicked stepmother, of course!
Young Jenny is due to inherit £20 million in a few days, once she turns 18.
Unless – she marries beforehand, whereupon said wealth belongs to her stepmother, Vanity Fair.
Who, as we learn, is a diabolical mastermind behind murders, robberies, blackmail.
The film dances between cozy murder and camp. Dialogue is a treat.
While set in France, I recognized Castell Coch (Wales).
Eileen Atkins delicious as the razor tongued villain.
English subs = https://subscene.com/subtitles/she-fell-among-thieves/english/3267249