Lily and Amanda, two high school students living in suburban Connecticut, rekindle their unlikely friendship after years of drifting apart. Together, they devise a plan to kill Lily's abusive stepfather by hiring a lowlife drug dealer.
Thoroughbreds is a 2017 American black comedy thriller film written and directed by Cory Finley in his directorial debut. It follows high school student Lily and her emotionless friend Amanda as they scheme to kill Lily's stepfather via a contract with a drug dealer.