Stage legend and Avengers femme fatale, Dame Diana Rigg, mostly recently seen in Game of Thrones, stars as the psychoanalytical detective with a taste for the high life. This stylish mini series, set in the 1920s, is based on the character created by crime writer Gladys Mitchell, who was the heroine of no less than 66 detective novels. Aided by her reliable and devoted chauffeur (Neil Dudgeon), Mrs Bradley's finely honed skills of investigation seek out the truth behind the mysteries surrounding a death at the opera, crimes of passion at a circus, a deadly poisoning and buried family secrets.