'Pretty Little Liars' Season 7 Episode 20 Recap: A.D. Finally Gets Unmasked

Hanna brings Mona to Aria’s rehearsal dinner, and the liars are understandably pressed about it. Aria’s father and Ezra gush about Aria for 30 seconds, which I fully support.

“It’s hard to find a babysitter for someone in their midtwenties.” —Hanna, on Mona

Emily catches on to the fact that Alison and Pam are hiding something from her. Instead of confronting them, though, she interrogates two Rosewood students at the rehearsal dinner about why they hang out with Addison. The girls look genuinely shaken up and say you just “don’t say no” to Addison. If you couldn’t tell, this girl is bad news (and serving major teenage Ali vibes).

“Sometimes I wish we were still in the basement.” —Ella Montgomery
“Oh my God, do you remember how we got out of there?” —Veronica Hastings (the greatest line from this episode, hands down)

Ashley drunkenly tells Hanna to stay away from Mona. Hanna obviously won’t listen to this advice. Spencer and Toby share a sexy but also awkward moment that makes me think it wasn’t really Spencer talking. This show is making me lose my mind.

Aria tells Ezra she’s known about her infertility for months now. She was scared to tell him. Ezra flips out at this and accuses Aria of not having faith in him. He’s out of line, and this quote from Aria explains why:

“It wasn’t about you. It was about me. Can you understand that?” Damn straight.

They go to bed angry. The night before their wedding.

Emily asks Alison what she and Pam were whispering about at the party. Turns out Pam isn’t dying: Alison just wants to propose to Emily! They get engaged in their sweatpants. I’m tearing up.

“You make me a better woman because you searched for one. Do you promise to do that every day for the rest of our lives?” —Alison, to Emily

Hanna agrees to kick Mona out of her and Caleb's apartment the next day. The two of them have sex to celebrate this decision.

“How much damage can she do in one night?” —Caleb, on Mona

Speaking of sex: Spencer and Toby bang again! But is it Spencer? Is it Spencer’s twin?! Does Spencer have a twin? I just don’t know anymore. We’re 54 minutes into this finale and nothing has happened!

Postsex, Spencer hears weird piano sounds coming from the other room. It’s Mona, wearing a black hoodie—and she knocks Spencer out cold!

“Deja vu, bitch,” Mona, before knocking out Spencer/Spencer’s twin/Someone in a Spencer mask

Spencer wakes up to find Mary Drake AND HER EVIL TWIN. Yes, guys, it’s real. Plot twist number three: SPENCER HAS AN EVIL TWIN, AND HER FIRST LINE IS “BOO.” SHE IS A.D. Mary Drake sticks Spencer with a syringe, and Spencer’s twin goes out into the real world pretending to be her.

Spencer wakes up chained to a bed and has a conversation with her (British) evil twin. Her name is Alex; she was a bartender working in the U.K. and had no knowledge of Mary Drake, Charlotte, Spencer—nothing. Wren, Melissa’s diabolical ex with an ax to grind with the liars, randomly bumped into Alex and told her everything. That’s why she became invested in this story. It motivated her to get revenge on Charlotte and the liars. Alex says that after Charlotte died, she wanted closure on her own terms. In a montage we see all the places Alex was instead of Spencer. Alex had sex with Bearded Toby last week—not Spencer. Alex was in the airport from episode 15—not Spencer. This clears everything up.