This was great. At the end, it reminded me of the movie "Clue." This movie certainly merits the description, "whodunit," but it's such a special twist on the genre since [PARTIAL SPOILER ALERT IN THIS NEXT SENTENCE] they reveal the who and the supposed how in the first third of the film. It's still quite a fun ride afterward.
There are many talented actors in this ensemble cast, and though most were necessarily underutilized due to appropriately focusing the narrative on the reluctant protagonist and dogged detective/P.I., I'm glad to have seen them.
There are some "politics" that appear in this film but that does not drive the narrative and is more so meant to be a reflection of current events and serve as a second layer of complexity beyond the obvious me-versus-the-family dynamic that presents itself halfway through the film. In short, if your blood is stirred by certain hot-button issues, take the brief references (not even really discussions) to them in stride and keep enjoying the film.