In the sun-baked Arizona desert, a quiet librarian named Natalie, played by Anya Taylor-Joy, discovers her mundane life is about to be shattered by a prehistoric secret. Her peaceful existence is upended when a mysterious and venomous Gila monster, rumored to be linked to a local legend, begins appearing near her home, coinciding with a series of strange and unsettling events in her small town. With the help of a skeptical but charming wildlife biologist, portrayed by Jonathan Groff, Natalie is pulled into a dangerous mystery that suggests the creature is more than a simple reptile. This quirky creature-feature blends heart-pounding suspense with dry, desert-dry humor, as Natalie must confront her own fears and uncover a conspiracy that threatens everything she holds dear. The film crafts a unique atmosphere of offbeat adventure, where the line between local folklore and terrifying reality becomes dangerously blurred.