Londoners Kate and Simon are balancing the raising of two young children whilst holding down stressful jobs. As things start to fall apart, they decide to uproot to the Suffolk coast. Kate battles to make a new life for the family under her mother-in-law's roof, while they search in vain for the perfect home. When she stumbles upon the house of her dreams, it's tantalisingly out of reach. It belongs to a frail old lady, Agnes. As the two become close friends, Kate is amazed to discover how much the dying woman's story echoes her own. As past and present intertwine, Kate comes to realise how uncertain and unsettling a life built on dreams can be.