Seventeen-year-old Millie Kessler (Kathryn Newton, Blockers, HBOs Big Little Lies) is just trying to survive the bloodthirsty halls of Blissfield High and the cruelty of the popular crowd. But when she becomes the newest target of The Butcher (Vince Vaughn), her towns infamous serial killer, her senior year becomes the least of her worries. When The Butchers mystical ancient dagger causes him and Millie to wake up in each others bodies, Millie learns that she has just 24 hours to get her body back before the switch becomes permanent and shes trapped in the form of a middle-aged maniac forever. The only problem is she now looks like a towering psychopath whos the target of a city-wide manhunt while The Butcher looks like her and has brought his appetite for carnage to Homecoming. With some help from her friendsultra-woke Nyla (Celeste OConnor, Ghostbusters: Afterlife), ultra-fabulous Joshua (Misha Osherovich, The Goldfinch) and her crush Booker (Uriah Shelton, Enter the Warriors Gate)Millie races against the clock to reverse the curse while The Butcher discovers that having a female teen body is the perfect cover for a little Homecoming killing spree.