Mahatma Gandhi said: 'the true measure of any society can be found in how it treats its most vulnerable members'. In this case, the murders of a mother and daughter in Nottingham represent a damning indictment of British society in the 1930s. Nursing homes were unregulated, doctors played God, and their decisions went unchallenged. It was a toxic soup that nourished the likes of Dorothea Waddingham and Ronald Sullivan, as former homicide detective Jacques Morrell explains.

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