Carlton Sand

While on vacation, a criminal psychologist investigates a murder during a typhoid epidemic. (TCM.com)

After his political days are over, Red decides to become a fireman. He takes the exam, goes to fire college and is stationed at Company 27. That station is commanded by Captain Shannon, who punched him out over his last girl and does not like him seeing his sister Margie. Red does just enough work to get by, but then his lack of attention causes his best friend Skillet to be injured. For his punishment, Red is suspended and then transferred to a fire boat. (imdb)

Doctor Meade (Jack Holt), a New York City doctor, while taking a vacation in the mountain country of Kentucky, comes across Doctor Hazard (Paul Everton) and his nurse Bonnie (Beverly Roberts) who substitute herbs and folklore for medicine. When a typhoid epidemic is shrugged off by Hazard as a mere summer ailment. Meade then takes on the task of overcoming superstition, opposition, ignorance and herbal remedies , in order to save many lives. And nearly gets lynched in the process.