When the usual legal crime-fighting methods can’t get the job done, they call in a special investigative squad. Jang Moo Won (Park Sung Woong) leads a special unit of homicide detectives who use “extra-legal” means to go after the most dangerous criminals. On his team are Cha Gun Woo (Kim Bum), a former Navy SEAL and SWAT member who has his own personal motives for being on the team; Jang Min Joo (Yoon So Yi), who is a master of disguise, psychoanalysis and martial arts; and Choi Tae Pyung (Lee Won Jong), who uses his back-alley connections to procure intel. As these detectives go deep undercover in the most dangerous situations, can they get their jobs done without being exposed? “Hidden Identity” is a 2015 South Korean drama series directed by Kim Jung Min.