November 1867. Variety hall actress Ophelia Flax's plan to reunite her friend Prue with her estranged and allegedly wealthy mother, Henrietta, is met with a grim surprise. Not only is the marquise's Paris mansion a mouse-infested ruin, but Henrietta has inexplicably vanished, leaving behind an evasive husband, two sinister stepsisters, and a bullet-riddled corpse in the pumpkin patch decked out in a ball gown and one glass slipper a corpse that also happens to be a dead ringer for Prue. Strangely, no one at 15 rue Garenne seems concerned about who plugged this luckless Cinderella or why, so the investigation is left to Ophelia and Prue. It takes them through the labyrinthine maze of the Paris Opera, down the trail of a legendary fairy tale relic, into the confidence of a wily prince.