Japan has one of the world's largest economies and a highly advanced technological sector. It also has a rapidly ageing population. Hiroyuki Kitakubo's 1991 Roujin Z considers this future world where AI has taken over the role of carer, resulting in some unforeseen consequences.
A scientist invents a new bed that, without the help of a nurse, can look after an elderly patient. It soon becomes evident that the scientist has used a brain at the centre of the bed and what's more, he has used the brain of the patient's dead wife.
The bed's AI decides to fulfil the dying widower last wish and take him to the seaside, where he and his wife were once happy. But the trip does not go to plan...