1) Greta takes a job as a nanny for an 8-year old boy for an elderly couple, but discovers the boy is actually a life-sized doll named Brahms that the couple treats as their real son.
2) Strange events occur as Greta ignores the rules of caring for Brahms. Her only friend is the delivery man Malcolm.
3) The filmmakers put extensive effort into designing the doll Brahms to look realistic but also unsettling to capture the central element of unease in the story.