Friends, if you're not watching Tokyo Vice on HBO, I highly recommend. Season 2 is about halfway over and it's going to be renewed for S3.
Based on a true story and book by Jake Adelstein, a young college grad from Missouri (Ansel Elgort) joins a Japanese newspaper as a crime reporter and ends up attaching himself to a senior Tokyo detective (Ken Watanabe). Together, they follow the bread crumbs into the Tokyo underground and Yakuza. It takes place in the early 2000s and the fashion and cars are dope as hell.
It's filmed entirely on location in and around Tokyo and is beautifully shot. It's a slower burn but the character development is excellent. S1 is 88% on rotten, S2 is 92%.
Big Ken is in his mid-60s and he's still a badass mfer.