Based on a story by master of horror James Wan ('Malignant', 'Saw,' 'Insidious' and 'The Conjuring' franchises), M3GAN stars Allison Williams ('Get Out') as Gemma, a brilliant roboticist at a toy company who uses artificial intelligence to develop M3GAN, a life-like doll programmed to be a kid's greatest companion and a parent's greatest ally. After unexpectedly gaining custody of her orphaned niece, Gemma enlists the help of the M3GAN prototype - a decision that has unimaginable consequences.