This is the 2017 Korean action/thriller/comedy film, native title "공조" (Korean for "Cooperate"), also known as "Cooperation" and "Mutual Assistance."

From MyDramaList: https://mydramalist.com/15666-confidential-assignment
"North Korean detective Im Chul-ryung is sent to South Korea to catch Cha Ki-sung, the boss of a North Korean refugee crime organization. There, Chul-ryung cooperates with South Korean detective Kang Jin-tae. For the first time, the two countries cooperate to take down a criminal."

IMDB: https://www.imdb.com/title/tt5606538
Wikipedia: https://en.wikipedia.org/wiki/Confidential_Assignment
AsianWiki: https://asianwiki.com/Confidential_Assignment

This has edited "soft" English captions; that is, English subtitles are part of the MKV file and the subtitles can be enabled or disabled as you wish.

I downloaded the source video "Confidential Assignment (2017) (1080p BluRay x265 r00t).mkv" and obtained the English subtitles from subscene.com, user miss_p1nky. Then I...
- Used Subtitle Edit (by Nikolaj Lynge Olsson) to find and fix all flagged issues
- Added 0.7 second to each subtitle (where possible) to allow more time to read them
- "Softened" all subtitled profanity (bastard --> jerk, damn --> darn, bitch --> wench etc.)
- Corrected commonly-found typos, also converting many word pairs into their common English contractions
- Watched the film and italicized music lyrics, characters' thoughts, short flashbacks, and some off-screen dialogue; also color-coded some subtitles for clarity as appropriate, using yellow, teal, and salmon colors for signs, flashbacks, and written/printed material
- Used Handbrake to create the new MKV file, adding my subtitle file as soft captions

Format: MKV
Format info: Audio Video Interleave
Total file size: 4.41 GB (4,740 MB)
Total duration: 2 hours, 4 minutes, 17 seconds
Overall bitrate: 5120 Kbps

Video format: MPEG-4
Video Codec: H264 - MPEG-4 AVC (part 10) (avc1)
Video bitrate: 4800 Kbps (2-pass)
Video width: 1920 pixels
Video height: 804 pixels
Video frame rate: 23.976 fps
Video decoded format: Planar 4:2:0 YUV
Video scan type: Progressive

Audio format: MPEG AAC Audio (mp4a)
Audio language: Korean
Audio bitrate mode: Constant
Audio bitrate: 320 Kbps
Audio channel(s): 2
Audio sampling rate: 48 KHz 

Subtitles:  English as soft captions - feel free to rip & use or distribute as you wish