The Trygon Factor

A Scotland Yard inspector is called on to investigate a series of unsolved robberies and the death of her lady colleague previously tracking down the case, and ends up at the country manor of an eccentric noble English family, sharing their castle with a mysterious sisterhood.

Crazily convoluted thriller that also mixes several styles from crime and action to romance and black comedy, and is peopled by mainly dislikable eccentrics. Eventually, somehow all these elements combine to produce an enjoyable rehash of Edgar Wallace and a general air of slickness and competence.