The Insects Unlisted in the Encyclopedia - Satoshi Miki (2007)
Yusuke Iseya plays Na, a freelance writer given a very unusual assignment in this 2007 comedy, the 4th film from "Adrift in Tokyo" director Satoshi Miki. What's so unusual about his assignment? Na is tasked by the editor of a tabloid newspaper to have a near death experience so he can write about the after life. Along with his hippy buddy Endo (Matsuo Suzuki) and former dominatrix, Sayoko (Rinko Kikuchi) Na hits the road to see if he can kill himself and then come back to tell the story.
Graveyard of Honor - Kinji Fukasaku (1975)
If you thought that Kinji Fukasaku's "Battles Without Honor and Humanity" was dark, violent and nihilistic then wait until you see his 1975 film "Graveyard of Honor". It stars Tetsuya Watari as real life yakuza Rikio Ishikawa and chronicles his rise to power and then utter self-destruction. When his own Tokyo-based Kawada clan can't control his sociopathic tendencies he's exiled to Osaka where, fueled by drugs abuse, Ishikawa manages to make even more enemies. Brutal stuff.