Bad Detective: Food Chain

Jeong Mi, a pickpocket ex-convict, ends up pickpocketing again to repay Dae Sik off of her father's debt. One day, Hae Joo, who is secretly meeting a detective, is kidnapped and turned into Dae Sik's prey. The detective then went on a search to find Hae Joo's whereabouts.
(Source: TMDb)