Doctor Hugo Hackenbush, Tony, and Stuffy try and save Judy's farm by winning a big race with her horse. There are a few problems. Hackenbush runs a high priced clinic for the wealthy who don't know he actually has a degree in veterinary medicine.
One of the greatest comedies of all time, period--and the finest comedic group at their peak, though I slightly prefer Duck Soup. Still, you won't find any better than this.
Their hilarity and zaniness of the core trio is spellbinding, and their consistent comedic inventiveness is remarkable. The pacing, utilizing the occasional charming musical passages of both Chico and Harpo, are to provide a necessary counterpoint to the set-pieces, otherwise it would be too much for a cinephile to take in at one sitting.