I think it was a one-off, the whole point of it is (I think) that you're supposed to gradually realise what it is. The bit at the end with the "new" mystery to solve of the disappearing body on the plane is just part of the joke... that once this mystery is all over and done with, there would immediately be a completely new "implausible, unsolveable case" for the amateur detective to get involved with.
Think "Murder, She Wrote" or "Diagnosis Murder" I guess.
Spoiler:
Bingo!
I got The Girl on the Train Vibes from it too
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Spoiler:
Quote:
Originally Posted by GiRTh
You compare Jim Davidson to Nelson Mandela?
Quote:
Originally Posted by Jesus.
I know, how stupid? He's more like Gandhi.
Quote:
Originally Posted by Isaiah 7:14
Katie Hopkins reveals epilepsy made her suicidal - and says she identifies as a MAN
Quote:
Originally Posted by Livia
Just because she is a giant cock, doesn't make her a man.