A vengeful spirit from folklore, la Llorona arrives in Rivervale to terrorize the rainy town. Betty and Toni find themselves in the specter's path and must seek Cheryl's help to protect the children in Rivervale, including Baby Anthony. Meanwhile, Jughead and Tabitha, along with Veronica and Reggie, experience their own hauntings that begin to put a strain on their respective relationships.
Set in the present, the series offers a bold, subversive take on Archie, Betty, Veronica and their friends, exploring the surreality of small-town life, the darkness and weirdness bubbling beneath Riverdale's wholesome facade.