In the future, life-like androids with artificial intelligence have actually been developed to aid individuals with menial home jobs. The prototype, One, developed by Roger Marshall and also evaluated by his family members, confirms to be prominent but flawed. Roger has actually been working with a brand-new version, 2, whose improved functions reveal pledge of its super-human capacities. As tensions rise in between Roger and also other half Shelley, the androids malfunction as well as the lives of the whole household are soon at risk of 2's threatening plans.