Written by Akela Cooper and co-producer James Wan, M3gan tells the tale of Gemma (Allison Williams), a roboticist whose work and personal life collide when her niece Cady (Violet McGraw) is suddenly orphaned after a car accident. Though Gemma’s not exactly keen on raising a child herself, in Cady, she sees an opportunity to test out M3gan (voiced by Jenna Davis), a sophisticated android she and her fellow engineers built to be the ultimate…