The riveting trailer follows Mulligan as Cassie, a conniving ex-medical student who had a bright future ahead of her until a traumatizing event derailed her life, leading her down a road of revenge.
"You remember the accusations made against Alexander Monroe? He took a girl back to his room," Cassie asks the med school dean at the beginning of the trailer. "You know we get accusations like this all the time," the dean asserts, to which Cassie asks, "So it's a he said, she said situation?" As the clip continues, it becomes clear that Cassie is willing to do whatever it takes to get her vengeance.
Promising Young Woman hits theaters on Christmas Day.