This is one of the Marx Brothers' few MGM pictures, from early on in their career - it's not as good as 'A Night at the Opera', but it's still head and shoulders above most comedy films made in the 63 years since! The unlikely plot centres on a sanitarium and a racecourse. Groucho plays a horse vet (Hugo Z Hackenbush - masquerading as an expert doctor) who comes to the aid of the short-on-cash hospital, advising the owner to make money via horse-racing. The plot isn't the reason for watching the movie (it never is with Marx Bros films!) - you should get this video to watch the madcap antics of the three stars. The operating theatre scene and the Groucho-Chico book-trading exchange are both achingly funny. One fact that Marx-fans should also note is that there's currently a two-film video available on Amazon, containing both this film and 'A Day at the Races' for pretty much the same price.