Fourteenyearold Quinn Parker knows there’s something off about Goodie Lane. More specifically, about the neighbors. She calls them “the Oldies” because they’ve lived there as long as anyone can remember, but they never seem to age. When her dad was alive, they’d come up with all sorts of theories about the Oldies: maybe they were day vampires, or they’d perfected a fountain of youth, or they were upgrading their body parts with new ones. After her dad’s death, Quinn still keeps an eye on the Oldies and recruits Mike—her neighbor and maybe crush—to help get to the bottom of this mystery. But the more they learn about the Oldies, the weirder things seem. And when she sees one of the Oldies whizzing past them with legs that have a birthmark identical to Quinn’s dad’s, they realize just how horrifying the truth may be.