The Nurse's Secret is a low-budget remake of Miss Pinkerton (1932), which in turn was based on a play by Mary Roberts Rinehart. Nurse Ruth Adams (Lee Patrick) is on the premises when two people die of what seem to be natural causes. Ruth suspects that they've been murdered, as does her detective boyfriend Tom Patten (Regis Toomey). Snooping around on her own, Ruth uncovers a deucedly clever insurance scam-and, as expected, nearly ends up a victim herself. The pre-Production Code candor of Miss Pinkerton has been toned down considerably in The Nurse's Secret, but the basic premise is still a workable one.