(Some Spoilers) The last of the MGM Dr. Kildare series without Dr. Kildare has to do with Kildare's replacement at Blair General Hospital Dr. Tommy Coalt, James Craig. Dr. Coalt a bit unorthodox in his methods in treating patients, one where he has a paralyzed bride recover from her deep depression by having her attend her own wedding in an iron lung with Dr. Coalt acting as the best man.
Having numerous complaints and threats of law suits against his hospital because of the bullheaded Dr. Coalt the big boss Dr. Gillespie, Lionel Barrymore, has him farmed out to the out of the way place in the country called Bayhurst feeling that he can't do any damage there, or so her thought. With one of the towns doctor Dr. Burson, Art Baker, going on a two month vacation to war ravaged Europe Dr. Coalt is immediately put in charge of his practice and his star patience Bayhurst socialite Cyntaia. Cynthia had been declared insane by the Grace family doctor Dr. Biddle, Henry Stephson, and what was needed was Dr. Coalt to do the same thing, in writing, to put her way in a sanitarium until she recovers which probably would be never.
Dr. Coalt refuses to sign the papers declaring Cynthia mentally unstable until he gives her a complete examination. This her father Mr. Wyndham Grace, Lester Matthews,throw a fit feeling that there's more going on between his daughter and Dr. Coalt then a doctor patient relationship and threaten to have him disbarred. As you would expect from the previous actions of Dr. Coalt he's not at all intimidated by Mr. Grace and his political connections in and out of Bayhurst and as usual does "his thing" instead regardless of the consequences.
Still having Cynthia under his care, Mr. Grace had since cooled down a bit, Dr. Coalt starts to backtrack and finds out the truth about the reason for her mental condition. It leads to when she fell on her head from a fall off a horse she was riding. This was all accomplished with the help of Dr. Gillsepie, who showed up unexpectedly, and a dose of truth serum as well as putting a confused Cynthia under hypnosis.
Realizing the delicate and dangerous condition that Cynthia was suffering from, a blood clot on the brain, Dr.Coalt had her virtually kidnapped taking Cynthia to to an obscure hospital in Brooklyn where he operated on her removing the blood clot and bringing Cynthia back to normal. Both the operation and flight out of town wasn't as easy as it looked taking some two months. This made Dr. Coalt a fugitive from the law facing at least 20 years for kidnapping as well as losing his license to practice medicine.
Showing up back in Bayhurst Dr. Coalt has a big surprise for the very distraught, and about to belt him in his mouth, Mr. Grace and he shows him his daughter in perfect health as a normal person instead of having to be committed for life in a sanitarium as Mr. Grace was about to have done to Cynthia.
In the end everyone is happy with Dr. Coalt taking over Dr.Burson's, who retired to Florida to go fishing, practice at Bayhurst with Cynthia completely overcoming both her illness and psychosis. The best thing,, besides Cynthias miraculously recovery, to happen in the film is old Dr. Gillespie finally hitting it big with a one million dollar contribution for his hospital. The donor being one of his most famous and eccentric admirers a little guy, Ben Lessy, who thinks that he's Napoleon Bonaparte! Like they say anything is possible in the movies.