The Undoing episode 6 is coming this weekend on HBO, which serves as the series finale. The mystery-psychological thriller will tie all the loose ends hanging since the beginning, particularly the courtroom battle. Viewers will find out what really happened to Elena Alves (Matilda De Angelis).
The truth behind Elena's death will be revealed in The Undoing episode 6, titled "The Bloody Truth." This has been a major part of the series from the start. Now that it's coming to an end, the revelations could change the world of Grace Fraser (Nicole Kidman) and her family.
Elena was murdered in her studio and all evidence suggests that Jonathan Fraser (Hugh Grant) -- Grace's husband -- was the one who did it. The two had an affair and even have a daughter. However, Grace became one of the suspects when she was found at the crime scene the same night it happened.
Grace is doing whatever is necessary to protect herself and her family as the courtroom theater mounts. But then, things get even more twisted when the penultimate episode, "Trial By Fury," delivered a massive cliffhanger that could change everything.
Grace found the hammer used to kill Elena on her son's, Henry Fraser (Noah Jupe), violin case. This would point him as the primary suspect, but there's a possibility that someone put it there to frame him. Perhaps, Jonathan planted it so he could put all the blame on his son.
Now, The Undoing episode 6 will finally answer who's killed Elena. The series is based on Jean Hanff Korelitz's 2014 novel, You Should Have Known. In the book, Jonathan sent Grace a letter confessing that he's the one who murdered Elena and the mystery was solved.
Yet, fans believe the show could go in a different direction and will deliver a new, unexpected twist. While Jonathan could remain as killer, someone out there could turn out to be the real murderer. Fans share their theories as to how The Undoing episode 6 wraps up the mystery.
One fan on Reddit shared that Jonathan is still the killer, but he's going to escape his punishment. The fan noted that the series possibly wants viewers to think that someone else is the murderer, though it's obvious that he's the one who did it given that his DNA is all over the crime scene.
However, the series may opt for another ending -- making Grace the real killer. One viewer speculated the character is unhinged, as she's wandering on streets at night and she seems to be confused by people and their emotions. The fan suggested that Elena may have a split personality.
If not Jonathan or Grace, Henry might be the one who killed Elena. One viewer pointed out that he panicked when the police were in the kitchen during the first episode. He's seemingly afraid of them, thinking that they're coming after him.
Viewers will finally find out who's the real killer when The Undoing episode 6 airs on Sunday, Nov. 29, on HBO.
