London, 1996. Robin and Ruth meet in the staff room of an East London school. Robin, desperate for a real connection, instantly falls in love. Ruth, recently bereaved and fragile, is tentative. When Robin introduces Ruth to his childhood friend, Joseph, a tortured and talented artist, their attraction is instant. Powerless, Robin watches on as the girl he loves and his best friend begin a passionate and turbulent affair. Dublin 2017. Robin and Ruth are married and have a son, Sid, who is about to emigrate to Berlin. Theirs is a marriage haunted by the ghost of Joseph and as the distance between them grows, Robin makes a choice that could have potentially devastating consequences.