In an attempt to relieve their grief, a couple welcome a humanoid robot version of their deceased son into their home. Under the characteristically subtle and nuanced direction of Kore-Eda, what begins as a thoughtful study of parental emotion and loss subtly transforms into a thematically rich and thorny exploration of artificial intelligence, our responsibility towards it and what the future might look like with this technology as part of daily life. Part human drama, part grounded sci-fi, this beautifully acted and moving film asks many complex questions whilst never losing its core humanity and pathos.