Wait, what? There was an alternate ending?
Well, according to the series creator Marlene King... there was. And it was waaay darker then the one they went with.
In an interview with Observer, Marlene revealed there was an alternate ending for Pretty Little Liars.
"There were some [endings] that were darker and we even talked about a Silence of the Lambs ending where Alex gets away, then calls Spencer, and Spencer walks up behind her and shoots her,” Marlene said.
The only reason they didn't go with the alternate ending is because they thought the show deserved a somewhat happy ending after all the drama.
“I’m a total romantic at heart and I felt like for Mona to win the game and for the girls to live happily ever after—that was the perfect ending,” she said