Struggling inventor Randall Peltzer visits a Chinatown antique store, hoping to find a Christmas present for his son Billy. Inside, Randall encounters a small, furry creature called a mogwai (Cantonese: 魔怪, 'devil'). The owner, Mr. Wing, refuses to sell Randall the creature, but his grandson secretly overrules him, warning Randall to remember three important rules: do not expose the mogwai to light, especially sunlight, which will kill it; do not let it come in contact with water; and above all, never feed it after midnight.
