Within the close to future, life-like androids with synthetic intelligence have been created to assist folks with menial family duties. The prototype, One, created by Roger Marshall and examined by his household, proves to be fashionable however flawed. Roger has been engaged on a brand new mannequin, Two, whose improved options present promise of its super-human talents. As tensions rise between Roger and spouse Shelley, the androids malfunction and the lives of the entire household are quickly in peril of Two's sinister plans.