Thrillers/Crime/Detective Dramas with mind blowing cases please!

Please recommend me some good ones even though they are not that popular, but have amazing plots and cases! Cause I mostly watch just popular ones and they're all good! been into Crime these days! 

I loved dramas like:
Signal
Tunnel
Criminal Minds
Partners for justice
Voice 1&2
Vampire prosecutor 1&2

Will be watching:
Rugal
You're all surrounded

I would appreciate crime/detective/forensic type ones rather than just lawyer type ones~ 

Thank you~ ヾ(＠⌒▽⌒＠)ﾉ

Have you seen Bloody Monday 1&2 already? I watched them years ago and still want to get back to it from time to time. Actually, I should find and watch them again. Too bad it's not possible to get back the thrill of watching it for the very first time and suspecting everything and everyone!

so for chinese dramas I absolutely recommend you; 

Bad Kids

Burning Ice

The Long Night

The Kidnapping Game

Tientsin Mystic - (this is a bit of a mix between crime/thriller and supernatural things)

 emaureeng:

Detective L - set in Shanghai in the Republican era, quirky, visually gorgeous

Thank you! Will research more about it! 

 Vvv:

Try 

MOUSE

LOOKOUT

I now have Mouse in my list, and will research more about Lookout and see if i like the plot~ hehe thank youuuu~

• Lookout
• He's psychometric
• Memorist
• Tell me what you saw
• Mouse
• Hello Monster
• Beyond evil
• Nobody Knows
• Forest of Secrets
• The Guest

Japanese:

• N no tame ni
• Unnatural
• Ouroboros