Celebrated crime writer Colin Knowles finds himself at the centre of a baffling real-life mystery when his estranged wife Louie asks for his help. Her new boss has gone missing at his grand country home -- and when his body is found, the hunt is on for a devious and twisted murderer. Sinister letters from London refer to a 'double crime'. Who will be the killer's next victim?

Tottie True is a gay-90s British music-hall performer who has her sights set on moving from rags to riches, who loses her heart to the pure-and-true blue balloonist, Sid Skinner, but continues her upward search on improving her social status. She finally settles for Lord Landon Digby who has lots of assets and a very-stiff upper lip. She gets a lot of the latter and very little of the former, and decides Sid might have been a better choice.