WATCH: Carey Mulligan is Vicious in 'Promising Young Woman' Trailer

Carey Mulligan (An Education) stars in the forthcoming revenge comedy Promising Young Woman, written and directed by Emerald Fennell (BBC America's Killing Eve), reports 

Maybe we should point out that this is a dark comedy, revolving around crime and driven by drama. Mulligan portrays a character named Cassie. She seemed to have everything going for her, but when she abruptly dropped out of med school, her life took a turn for the worse.

The description doesn't say what happened, but based on the newly released trailer, it suggests sexual assault. We see Cassie back at school, addressing the traumatic event with Dean Elizabeth Walker (Connie Britton). The dean claims to have no recollection, asking Cassie, "What would you have me do? Ruin a young man's life?"

If no one is going to believe Cassie, or come to her defense, then she will take care of matters in her own way. Cassie disguises herself as extremely intoxicated and when predatory men make their advances, she snaps out of the faux drunken state, striking back:

We can also look for Alison Brie (GLOW), Adam Brody (Shazam!), Jennifer Coolidge (2 Broke Girls), Bo Burnham (The Big Sick) and Laverne Cox (Orange is the New Black).

Fennell released a statement about working on the dark comedy, saying, "Frankly, I feel lucky to be allowed anywhere in the vicinity of so many geniuses, and I can’t wait to bring this twisted tale to life," reports Variety.

You can look for Promising Young Woman on December 25.

Are you interested in seeing how this twisted tale ends?