In 1976 Melbourne, a lonely 8-year-old girl strikes up a correspondence with an unlikely pen pal: a severely obese 44-year-old New Yorker with Asperger's syndrome.
Bubby has spent thirty years trapped in the same small room, tricked by his mother. One day, he manages to escape and, deranged and naive in equal measures, his adventure into a modern and nihilistic life begins.