London, Summer 1951: Clem Fatale, the youngest crook in the city, and her best friend Gilbert are going to see their favourite musical double act, the Wade Sisters, perform at the London Palladium! But then one half of the duo – Betty Wade – disappears. Her sister Judy hires Clem and Gilbert to find Betty.The pair are soon pulled into the dark side of the theatre scene, and into the orbit of a notorious criminal mastermind. It’s a race against time and the gangsters of London to get Betty back to the theatre.

Will Clem be able to stage the rescue of a lifetime?