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.

A hired killer has a change of heart when he discovers that Father Dowling is his intended victim. He warns the priest that someone else is certain to accept the contract. Now it's up to Father Dowling to figure out who, and why, someone is out to get him.