In a parallel present where the latest must-have gadget for any busy family is a 'Synth' - a highly-developed robotic servant that's so similar to a real human it's transforming the way we live.

Reeling from the discovery of her husband's adultery, Grace moves back to her family home with her son. Amidst all this emotional turmoil, forensic psychologist Grace is asked by police to determine the guilt or innocence a man who killed his wife.