Monk's Last Case," a reunion movie debuting Friday on Peacock. "I'm embarrassed that I had to go back and watch the old series, which I haven't done in a while," the writer/producer tells USA TODAY.

This is why, should there be another Monk reunion, it should be a movie sequel to Mr. Monks Last Case. Monk is back for his most personal case yet. Heres a breakdown of who did it, how they did it ...