A Girl Who Sees Smells
냄새를 보는 소녀 (original)
With help from a young woman with synesthesia, a cop who lost his sense of pain tracks down the serial killer who brought tragedy to both their lives.
Starring Park Yoo-chun, Namkoong Min, Shin Se-kyung, Jin-Seo Yoon, Yoon Jin-seo, Kim So-hyun, Song Jong-ho, Lee Won-jong, Choi Tae-joon, Jo Hee-bong
Watch "A Girl Who Sees Smells" from streaming services Netflix, Rakuten Viki released in 2015. It's a comedy and sci-fi & fantasy show, and has a rating of 7.1 out of 10 from Imdb which is usually fine for this kind of show.