"Thoroughbreds" is an early contender for the top spot on my Worst Movies Of 2018 list.
It's the story of two rich, spoiled, psychopathic teenage girls who plot the murder of one of their stepfathers. The performances by Olivia Cooke and Anya Taylor Joy are flat, there are no characters to root for, and no one with any redeeming characteristics whatsoever.
There's also Tim, the local loser who gets caught up in the girls' plot, played by Anton Yelchin in his final role before his death. I checked the dates to discover that Yelchin died in June, 2016, which means "Thoroughbreds" (which is dedicated to him) has been sitting on a shelf for over a year and a half. It should have remained unreleased or, even better, unproduced. Blame must be placed on the rookie filmmaker who wrote and directed it, Cory Finley.
By the way, don't be fooled by online reviewers saying "Thoroughbreds" reminds them of "Heathers," the 1988 dark comedy that starred Winona Ryder, Christian Slater, and Shannen Doherty. Go rent that movie instead of wasting a hundred minutes with this trash.
I give "Thoroughbreds" a 1 out of 10.