The Scent (2012)

Cast
Park Hee-soon (박희순) as Kang Seon-woo (강선우)
Park Si-yeon (박시연) as Kim Soo-jin (김수진)
Joo Sang-wook (주상욱) as Han Gil-ro (한길로)
Kim Jeong-tae (김정태) as Detective Seo (서형사)
Lee Han-wi (이한위) as Rebel leader Sa (사반장)
Kwang Soo (이광수) as Gi-poong (기풍)
Cha Soo-yeon (차수연) as Hye-yeong (혜영)

Trailer

Synopsis
A detective (Park Hee-Soon), who moonlights as a private investigator, has a beautiful new client Soo-Jin (Park Si-Yeon). The woman asks the detective to take photos of her husband in the midst of having an affair with another woman. When the detective goes to take pictures he discovers that the woman's husband is already dead. Now the detective becomes a suspect. The detective is chased by another detective (Joo Sang-Wook). He must now set out for the real killer.