The "f*cking horror movie" playing out between Arya Stark, Sansa Stark, and Petyr "Littlefinger" Baelish will climax in the "Game of Thrones" Season 7 finale.

While most of the main "Game of Thrones" characters gather in King's Landing for that White Walker summit, the Stark sisters will be at Winterfell climbing the ladder of Littlefinger's chaos.

The Episode 7 finale, titled "The Dragon and the Wolf," airs in a supersized episode this Sunday, Aug. 27.

Alan Taylor directed Episode 6, "Beyond the Wall," and talked to the Huffington Post about the Arya/Sansa tension thus far, and where it goes from here:

"I think both characters have been through absolute hell since the death of their father in very different ways, and have turned into absolute lethal individuals. We're very aware of how lethal Arya is, because she's displayed it over and over again. But I love the fact that the tables do turn back and forth between them; it really is a shifting back and forth of power between them in those scenes we had. And when Sophie says she won the Battle of the Bastards, she's right. I love the fact that these two come back, they're both lethal, and I just wanted to give the impression, as much as possible, that one of them is going to die. But you're not sure which one.

[...] Arya is certainly lethal and sort of threatening, but when Sansa sends Brienne away, who is Arya's natural protector, something is coming very soon between them, and it will be violent but surprising."

If one of them were really to die, would he drop that spoiler? Sounds like he just wanted to leave that impression. Arya could've killed Sansa at any time, but she handed over the dagger that Littlefinger had given Bran, that Bran gave to Sansa. Would Sansa kill Arya? No. This whole thing is frustrating -- we just wanted a happy Stark family reunion!

Sansa actress Sophie Turner is the one who compared this tension to "a f*cking horror movie" in a talk with Entertainment Weekly:

"In the books, it says something about how Arya and Sansa are different sides of the same coin. They love each other but they're so different. They never really got along. And now that they're back together that's heightened because they've gone down totally different paths and have had to adapt to totally different situations to the point where they don't see on each other's level. They don't really talk about what they've gone through. They never really had that communication before, and now when it's vital to do they don't have that and can't understand each other. Arya still sees Sansa as a snooty prissy child that she was before she left for King's Landing. There's a big lack of communication. There's this underlying tension. It's like a f*cking horror movie."

You know who's loving this? Littlefinger. However, actor Aidan Gillen knows his character is walking a fine line, and his plan could "backfire" at any moment. Here's what Gillen told EW:

"Watching my plan come to fruition is quite something. There's all kinds of mixed things going on with Littlefinger and that relationship with Sansa. So watching her grow in stature is quite enjoyable. With carefully laid plans there's always a bit of risk involved. He puts himself in a situation that could backfire on him. I think he likes it. His plans are never fail safe. But he puts himself on the line like a good gambler."

This fool should've fled Winterfell the second Bran told him chaos is a ladder. There are powers much greater than his machinations in play here, and he has to know a short-term win here can never be a long-term gain. Between Bran's emo omniscience and Jon Snow eventually returning, what's his end game?

The Season 7 finale airs Sunday, Aug. 27 at 9 p.m. on HBO.

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