The year is 1929. As the world teeters on the brink of a global recession, Bletchley Park plays host to a rather special event. MI5 is celebrating its 20th anniversary, and a select band of former and current employees are gathering for a weekend of music, dance, and heavy drinking. Among them is Sir Hilary Manningham Butler, a middle-aged woman whose entire adult life has been spent masquerading as a man. She doesn't know why she has been invited, but it is clear she is not the only one with things to hide.
"Awesome story tho not about Bletchley!"