London, 1951: Clem Fatale, the youngest crook in the city, is on a mission to find her dad. Jimmy Fatale, notorious jewel thief and leader of the Spider Gang, has gone missing and with him the greatest prize in London: the Fool's Canary.

Along with her prisoner and/or sidekick Gilbert (depends who you're asking), Clem sets off on a rip-roaring chase through the London underworld. Racing through dodgy dives, glamorous nightclubs, greasy spoons and secret alleyways, Clem and Gilbert are soon pursued by a host of friends and foes.

Will Clem find her father in time? Or will the most sinister villain this side of the river put a stop to all her plans?