- HD 1080
- Runtime: 108m.
- Status: Released
0
- Languages: cn
- Country: China, Hong Kong
- Director: Jazz Boon
- Stars: Nick Cheung Ka-Fai, Louis Koo, Francis Ng Chun-Yu, Charmaine Sheh Sze-Man, Benz Hui Shiu-Hung
- keywords: drug dealer, undercover cop, police investigation
- Production_studio: Shaw Brothers, TVB, PJ One Cool Film Company Limited, One Cool Pictures, Stellar Mega Films, J.Q. Pictures, Media Asia
- providers: Amazon Prime Video, Amazon Prime Video with Ads
- The Line Walker is featured in the top rankings of 2016
- #72 in Top Action Movies of 2016
- #68 in Top Crime Movies of 2016
The details of undercover police officers are deleted from a police database and a senior officer is left struggling to know who are the undercover officers and who are the criminals.
