We finally learn what happened at Carl’s Taproom.

I feel like I’ve been holding back a sneeze since early August!

It’s Phoebe’s 19th birthday.

The Sinner - Season 1

Credit: Peter Kramer/USA Network

Mother Lacey gets a little tipsy on wineher annual traditionand is almost pleasant to be around for once.

Cora gives her sister a pretty new dress.

She eyes the clock.

Phoebe eyes Cora eying the clock.

Later, as Cora prepares to sneak out to meet up with J.D.

When that tactic doesn’t work, she threatens to scream their parents awake unless Cora obliges.

And so Cora helps Phoebe, wearing makeup and her new dress, into Carl’s Taproom.

I’m here for this twist!

and Maddie are already there when the sisters arrive.

Maddie finds Cora in the bathroom and tells her about J.D.

wanted nothing to do with it, she walked into traffic, killing the baby.

“You are waiting for him to ride up and choose you,” she says.

“You’re a giant.

You could lock up anybody you wanted.

You could have anything you wanted.”

The bell rings for last call.

The Lacey sisters sit together in the backseat of J.D.

’s truck until Phoebe loses control of her bladder and Cora makes J.D.

Cora washes Phoebe’s new dress in a stream in the woods.

She wants to go home; Cora says it’s too late.

But she doesn’t.

As Cora gets her dressed again, Phoebe questions all the stuff that’s packed in Cora’s bag.

She’s furious to hear Cora secretly agreed to move in with J.D.

This isn’t exactly a country club crowd, but someone’s waiting there to let them in.

Who could it be but our old pal Frankie Belmont (whom J.D.

with a big hug?

Lo and behold, Phoebe and Frankie immediately and powerfully hit it off.

Their connection is easy, and their conversation both flirty and emotional.

She reads him Emily Dickinson.

He tells her he feels like he’s always known her.

She’s moved to tears.

They kiss, gently.

Get it, Phoebe.

asks Cora to help him impress someone he’s hoping to do business with.

This is Todd, supposedly a real estate developer.

He shoots up as they watch and lays an unwelcome hand on Cora’s knee.

When Maddie enters, she gleefully sits on Todd’s lap, but J.D.

tells her to scram.

She’s devastated, and more practically, she doesn’t have her own car to get home in.

He doesn’t care.

What a card, that J.D.does he have a brother?!

Phoebe looks blissfully happy.

Cora wants to go home; Phoebe refuses.

“You have to think about yourself.”

Phoebe announces that the party is heading downstairs, downthosestairs, to hear Frankie’s music.

There, as they listen to a song by Frankie’s bandbut not The Song by Frankie’s bandJ.D.

cuts lines of coke.

Phoebe encourages Cora to loosen up and let go for once.

This is not the MurderFest 2012 I’d expected.

Then, The Song comes on.

Cora snorts another line and J.D.

takes her panties off on the carpet.

On the couch, Phoebe and Frankie tenderly have sex.

Her older sister sees this happening and smiles.

pushes her head into the carpet.

It is very upsetting.

Her heart couldn’t take it.

But all Cora can tell is that something terrible is happening.

(We get it, guys.)

’s face as he tries to pull her off Frankie.

In turn, Boyfriend of the Year and all-around amazing catch J.D.

grabs an ashtray and smashes Cora in the head.

So that’s how she got that terrible, mysterious wound.