BoJack Horseman was the star of the hit television show "Horsin' Around" in the '80s and '90s, but now he's washed up, living in Hollywood, complaining about everything, and wearing colorful sweaters.
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.