In 1974, Richard John Bingham, the 7th Earl of Lucan, disappeared after accidentally murdering his children's nanny instead of his wife. Despite Scotland Yard's worldwide manhunt, Lucan has never been found, dead or alive. If any of Lucan's circle of intimate friends including financier Sir James Goldsmith and gambling impresario John Aspinall have any knowledge of him, they will doubtless take it to their graves