
Father Dowling does his duty, jury duty, in a murder case that should have been open and shut. Father Dowling is not so sure and his claim of reasonable doubt ends in a deadlocked jury. While the DA angrily works toward a retrial, Father Dowling and Sister Steve conduct an investigation of their own, at the center of which is the testimony of an eyewitness who seems to keep company with some unusual sorts.
It looks like a royal mess when Sister Steve find herself trapped in a Royal scandal. The Sister trades places with a frisky British noblewoman in order to infiltrate a trade delegation. Father Dowling has his hands full riding shotgun, trying to keep an eye open for the Sister's Royal killer.
The local hospital is the scene of some 'extra' deaths when Father Dowling and Sister Steve uncover a string of mystery murders. Father Prestwick insists on helping out and almost becomes the next victim.