Cupid 2020 focuses on Faye, a lovesick high schooler and practicing witch who is relentlessly bullied by a group of popular mean girls, led by Elise. After a particularly humiliating prank involving her crush on a teacher, Faye uses black magic to summon Cupid, a vengeful and bloodthirsty demon rather than the traditional cherub of love. The demonic Cupid then embarks on a gruesome killing spree on Valentine's Day, slaughtering Faye's classmates and teachers one by one, forcing the students to try and find a way to stop the supernatural slasher before their hearts are literally broken.