The Scent is a 2012 comedy-thriller film from South Korea starring Park Hee-soon and Park Si-yeon.
Kang Seon-woo is a detective who specializes in adultery cases. One day, he investigated one scene only to find two bodies. The only witness was Kim Soo-jin, the wife of the deceased. Seon-woo inadvertently becomes the prime suspect and struggles to prove his innocence.
For the past two years, while suspended for having an affair with the wife of the police chief, detective Kang Seon-woo (Park Hee-soon), has run a private investigative agency specializing in adultery and affair cases. He is also sued for being divorced by his wife, Hye-young (Cha Soo-yeon). A few days before resuming his old job, Seon-woo receives a case from a woman, Kim Soo-jin (Yoon Jae), who wears a very alluring perfume. She said her husband, a casino millionaire named Nam Yeong-gil (Jo Won-hee), was having an affair with another woman at a love hotel in Gapyeong, Gyeonggi Province, outside Seoul. Seon-woo books a room next to Nam Yeong-gil in a hotel that has no manager and meets Soo-jin. Instead of surprising Yeong-gil and her affair, Soo-jin invites Seon-woo for a drink and teases her. The next morning, Seon-woo wakes up next to Soo-jin's body, and in the next room finds Yeong-gil dead too. The woman who has a difficult relationship with Yeong-gil is also named Kim Soo-jin (Park Si-yeon) and states Yeong-gil is her husband. Together with his stupid assistant, former impostor Gi-poong (Lee Kwang-soo), Seon-woo cleans the scene and buries the corpses, realizing he has been slandered for murder. Continuing his duties at the Jonggu Police Station, Seon-woo investigates the case along with two of his friends: the stubborn and disliked Seo (Kim Jung-tae), and the friendly Han Gil-ro (Joo Sang-wook), who admires him. Seon-woo has noticed that Soo-jin (Park Si-yeon) is wearing the same perfume as the dead Soo-jin, and she admits she wants to ask for a divorce from her husband, who always beats her up. Seon-woo then interrogates Soo-jin's dead boyfriend, gym trainer Lee Jin-guk (Kim Yun-seong), but the clues aren't encouraging. The highly detailed Seo officer brings more evidence that could eventually lead to Seon-woo being involved in the murder, Seon-woo finds himself falling in love with Soo-jin and races to solve the mystery.
Park Hee-soon as Kang Seon-woo
Park Si-yeon as Kim Soo-jin
Joo Sang-wook as Detective Han Gil-ro
Kim Jung-tae as Detective Seo
Lee Han -wi - Chief Detective Sa
Lee Kwang-soo as Gi-poong
Cha Soo-yeon as Hye-young