WARNING: SPOILERS AHEAD!
In case you're unaware, Harry Potter and the Cursed Child, is a West End play which began showing previews of Part I on June 7 and Part II on June 9 at the Palace Theatre in London.
The play was written by Jack Thorne and based on a story written by Thorne, J.K. Rowling and director John Tiffany. The play is set nineteen years after the last Harry Potter novel and is centered around Harry's son, Albus.
After the previews began, reviews started circling around online. The production created the #KeeptheSecrets campaign to try to prevent spoilers.
But they got out anyway.
The most comprehensive leak was posted by The Daily Beast, who released the entire plot. You can read the synopsis here.
The plot has since been confirmed by other critics and members of the audience.
The story is based around Harry's son, Albus and Draco Malfoy's son, Scorpius. The duo travel through time using time turners to stop Cedric Diggory winning the Triwizard Tournament.
They are convinced to do this by a mysterious girl named Delphie, who turns out to be the daughter of Voldemort and Bellatrix Lestrange.
Yes, you heard that right.
In a strange mishap they end up creating a world where Voldemort was never defeated. Hogwarts is ruled by Dolores Umbridge and the wizarding world worships Voldemort. Going back and forth in time, they work together to set things straight.