A fading actor best known for his portrayal of a popular superhero attempts to mount a comeback by appearing in a Broadway play. As opening night approaches, his attempts to become more altruistic, rebuild his career, and reconnect with friends and family prove more difficult than expected.
The story frames on 7-year-old Maisie, caught in a custody battle between her mother – a rock and roll icon – and her father. What Maisie Knew is an evocative portrayal of the chaos of adult life seen entirely from a child’s point of view.
A year after his father's death, Oskar, a troubled young boy, discovers a mysterious key he believes was left for him by his father and embarks on a scavenger hunt to find the matching lock.