When artificial human Meredith is assigned as a companion to grieving widower William, she is designed to behave like his late wife. But in the fight to end AI exploitation, an organization attempts to sabotage her programming.
After her mother is murdered on Halloween, a rebellious teenager travels back in time to 1987 where she must stop the young would-be-killer and get back to her rightful time line before she's trapped in the past forever.