The film won the Academy Award for Sound, and was nominated for Best Director, Best Film Editing, Best Music, Scoring of a Dramatic or Comedy Picture and Best Picture.
However, Dudley's mission isn't to help with the construction of the cathedral. He is there as a guide to Henry and the people around him. Henry has become obsessed with the building of the new cathedral, to the detriment of his duties and marriage with his neglected, unhappy wife, Julia (Loretta Young). Everyone, except for Henry, is charmed by the newcomer, even the non-religious Professor Wutheridge (Monty Woolley). Dudley finally and easily persuades the wealthy parishioners, particularly Mrs. Hamilton (Gladys Cooper), to contribute the needed funds, but not to build the cathedral. He helps Mrs. Hamilton come to the decision to give her money to feed and clothe the poor and needy--much to Henry's chagrin.
When Dudley spends time cheering up Julia, there is an unexpected development: Dudley finds himself strongly attracted to her. Sensing this, Henry becomes jealous and anxious for his unwelcome guest to finish and depart. Eventually, he stands up to the angel. With his mission completed and knowing that Julia loves her husband, Dudley departs, promising never to return. All memory of him is erased.
Although no denomination is mentioned in the film, the characters are clearly members of the Episcopal Church.