The sensitive-looking British child star of the fifties was born Carmen Isabella Miller in 1944 but affectionately called "Mandy" practically from birth. Her father, a BBC Radio producer, took Mandy (then age 6) and her older sister, Jan Miller to watch a film being made at Ealing Studios. Instead of her sister, it was Mandy who impressed the powers-that-be at the studio commissary that day and was offered a small role in the Alec Guinness film The Man in the White Suit (1951). The little girl took gingerly to acting and signed up for classes along with dancing lessons, finding some work in commercial modeling. She achieved in the 1950s what popular child star Hayley Mills would accomplish a decade later, except in a dramatic vein for Mandy's strong suit was no-holds-barred tearjerkers. Her finest hour in film came with the movie Mandy (1952), in which she portrayed a disturbed deaf girl called "Mandy". Other moving performances came in Background (1953), as the young product of a bitter divorce, The Secret (1955), which was a covert thriller, and Child in the House (1956), which proved to be another sob story suited to her talents. In her final film, The Snorkel (1958), Mandy played a young teen who leads police to her mother's murderer. After guest shots on TV's "The Avengers" (1961) and "The Saint" (1962), she left the limelight, forever. At the age of 18, she moved to New York to become an au pair. Mandy married an architect in 1965, had three children (two girls and a boy), and settled down to a life of domesticity.
Aunt of actress Amanda PaysYounger sister of Jan Miller .Ex-sister-in-law of Howard Pays .Aunt-in-law of Corbin Bernsen .
Mandy was born deaf and has been mute for all of her life. Her parents believe she is able to speak if she can only be taught and so enrol her with a special teacher.
Paul Decker murders his wife in her Italian villa by drugging her milk and asphyxiating her by gas. He cleverly locks the bedroom from the inside and hides inside a trapdoor in the floor until after the body is discovered by servants. He uses a scuba snorkel connected to tubes on the outside to breathe during the ordeal. Decker's stepdaughter Candy suspects him immediately, especially since no suicide note was found. She also is convinced that he murdered her father years before, but her accusations fall on deaf ears. The ruthless Decker even poisons the family spaniel when the pet takes too great an interest in the mask and realizes he will ultimately have to get rid of Candy too.