Cary Grant and David Niven are an unexpected pairing. Grant gets all the focus, so I saw Cary Grant and that it’s a romance and assumed that Grant is the Bishop. But it turns out that he’s an alleged angel and Niven is the Bishop, which makes more sense for their types.
Grant’s character inveigle his way into the Bishop’s life claiming to be an angel here to help with a challenging renovation, but mostly imposes upon him and attracts the attentions of his wife, hence the title. Sounds like an unusual setup for a screwball comedy.
I’m unclear whether the anti-Semitism the main character wants to expose is within a particular institution, or more broadly, within society at large, like the seminal Black Like Me, or less seminal White Chicks.
While there are people, perhaps even people who would not be considered eugenicists or race-nationalists, who consider “Jewish” a morphological race, the physical characteristics are very subtle, to the point where I’m not sure how a Gentile reporter would pose as a Jewish man other than introducing himself to people who don’t know him with a “hi, I’m Jewish, by the way!” A long game approach would probably be to get a new job somewhere and drop big hints, but that would point back to “within a single institution”. I feel like I got out of my depth three paragraphs ago and I should just let the movie tell its own story.