Midnight in the Garden of Good and Evil movie plot

Describes that John, a journalist from a New York magazine, was appointed to go to the town of Sivina, Georgia to interview the rich man Jim for a Christmas party. Unexpectedly, after the party ended, news of Jim's murder came out. Jim claims that he is killing himself in self-defense. If John can help and collect relevant information to prove his innocence, he can get the exclusive right to report the entire story. John, running around, interviewed all kinds of interesting people in this weird southern town. He also learned that Jim and the deceased were gay lovers. Unexpectedly, before the final trial, Jim took the initiative to explode. Insider.