How do the police know all this at the end of "Promising Young Woman"?

How do the police know all this at the end of "Promising Young Woman"? - Child Showing a Message Written in a Notebook

At the end of Promising Young Woman,

when the police comes to arrest Al, how do they know he is the killer?

I can imagine they discovered the necklace and what remained of the body, but at this point wouldn't everybody at the party be a suspect? The video of Nina can at best make him the main suspect. Before the police arrests him, I think they would at the least need to talk with everybody at the party.



Best Answer

As explained by EW:

He's ultimately arrested because Cassie had a backup plan (a cache of incriminating emails and texts set to disperse in the event of her death), but the ending still stings — and that's exactly what Fennell wanted.

Variety details:

As a Plan B, she’s sent evidence of Nina’s sexual assault to Al’s former lawyer (Alfred Molina), who would very much like to repent for the choices he made as an attorney years ago. Whatever Cassie sent as proof of her disappearance (we never see it), the police find her remains.




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How do the police know all this at the end of "Promising Young Woman"? - Girl Showing a Message Written in a Notebook
How do the police know all this at the end of "Promising Young Woman"? - Child Showing Message Written in a Notebook
How do the police know all this at the end of "Promising Young Woman"? - Girl Showing a Message Written in a Notebook



How does a Promising Young Woman end?

The movie's controversial ending (SPOILER!) sees Cassie suffocated and killed by Nina's rapist Al (Chris Lowell) at his bachelor party, after an attempt at revenge goes horribly wrong. Her remains are then disposed of by Al and his friend Joe (Max Greenfield) in an attempt to cover up the crime.

Who was texting at the end of Promising Young Woman?

But she had already sent incriminating evidence to a lawyer, and so Al is arrested during his wedding reception as Cassie's former boyfriend Ryan (Burnham) receives one last timed text message from Cassie.

What do the red marks mean in Promising Young Woman?

Red suggests to me the possibility of an encounter turned violent, but this is not specified and Cassie is not shown to arm herself for these encounters or to ever have raised the suspicion of her parents with marks of violence on her body.

What did Cassie leave in the cash register for Gail?

In another part of town, Gail (Laverne Cox), Cassie's coffee shop coworker and only friend, finds in the cash register a broken-heart necklace engraved with Cassie's name \u2014 the other half of the one with Nina's name that Cassie had been wearing throughout the movie, and that was around her neck when she died.



Promising Young Woman Ending Wedding Scene




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