Minnie and her sister, Clara, spinsters both, live in a dilapidated country house in the middle of a housing estate, built when their father sold off the family's land. Now in their 70s, their days follow a well-established routine: long gone are the garden parties, the tennis lessons and their suffocating strict mother. Gone, too, is any mention of what happened when Minnie was 16 and the secret the family buried in the grounds of their estate.
Directly opposite them lives Max, an 11-year-old whose life with his mum has changed beyond recognition since her new boyfriend arrived. Cast aside, he takes solace in Minnie's careful routine, observed through his bedroom window. Over the course of the summer, both begin to tell their stories: Max through a Dictaphone, Minnie through a diary. As their tales intertwine, ghosts are put to rest and challenges faced in a story that is as dark as it is uplifting.