This has nothing to do with Edgar Wallace. It was originally released as a second feature in 1964 to Carry on Cleo (1964). It was then repackaged as a TV episode in a series for export to Europe and America.
In this film Marianne Stone wears the same piece of jewellery around her upper left arm as she did in Lolita (1962) and would wear again in Hysteria (1965)
Opening credits: All characters and events in this film are fictitious and any similarity to actual persons and events is purely coincidental.