Babadook is a good shout, though a bit over rated and frustrating. Japanese stuff I presume you’re familiar with takeshi Kitano?
If not check out Violent Cop, Sonatine and Hana Bi for his earlier stuff. Zatoichi, his take on classic Samurai themes.
Also take a look 13 Assassins. Which was directed by the insanely brilliant Miike Takashi. He’s incredibly prolific, basically a workaholic (12 films a year) a lot are direct to video stuff he takes on just to stay busy but he still gives his own twist to; but he does make some incredible films. Audition, Happiness of the Katakuris, Dead or Alive, City of Lost Souls, Visitor Q, Ichi the killer…