“Bad Monkey” tells the story of Andrew Yancy (Vince Vaughn), who has been bounced from the Miami Police Department and is now a health inspector in the Keys. But after stumbling upon a case that begins with a human arm fished up by tourists, he realizes that if he can prove murder, he’(✅)ll be back in. He just needs to get past a trove of Floridian oddballs and one bad monkey.