What is a piece of media that had a completely different tone than you were expecting from the outside?

For me it was breaking bad, I had the cliffnotes of "it's the highschool chemistry teacher who has cancer and cooks meth to pay for treatment."

And from the outside you'd expect you'd expect "he's not a very wealthy person, he's gonna get cancer and driven by threat of financial ruin he's gonna turn to making drugs"

But that is not the story of Walter white, Walter white is a man who didn't really need that much of a push to go off the deep end, he's a man so resentful of the life he ended up in that he really went crazy the first time he was given an excuse.

I do wonder if this is an example of a tv show being warped by a pilot, where the need for walt to start cooking meth episode 1 requires him to be much less reluctant to do so than a normal person