An alien entity inhabiting a female human form, she travels across Scotland in a van, luring vulnerable men to a desolate house where she drains them of life into a liquid abyss. Throughout her journey, she observes human behavior, attempts to comprehend physical sensations like eating and intimacy, and gradually develops curiosity. Her mission ends when a logger's violent assault tears her synthetic skin, exposing her featureless true form, leading to her destruction by fire.