Wallis Simpson, the American divorcée for whom King Edward VIII gave up the British throne in 1936, spent her final years isolated and mentally incapacitated in her Paris home, cut off from the outside world by her lawyer, Suzanne Blum, who took control of her affairs after the Duke of Windsor's death in 1972. Blum is alleged to have exploited the ageing and increasingly frail Duchess, restricting access to friends and family, mismanaging her estate, and allowing her to languish in squalid conditions until her death in 1986. The story matters as a stark coda to one of the twentieth century's most famous royal romances, revealing how the couple's isolation from the Royal Family after the abdication left Wallis vulnerable to exploitation once her husband was gone.

Accounts describe the Duchess, bedridden and suffering from dementia and other ailments, being kept largely hidden from visitors during her last decade, with reports that few people, including former friends and even members of the Royal Family, were permitted to see her. Blum was later accused of enriching herself and selling off possessions and papers from the Windsors' estate while Wallis was unable to object or understand what was happening. The couple, who married in 1937 and lived mostly in France after the abdication crisis, had no children, meaning the Duchess had little protection once her health declined and her husband was gone.