Shows like Gaewa neukdaeui sigan

The Time Between Dog and Wolf (L'heure entre chien et loup) is the twilight hour when it's difficult to distinguish good from evil, friend from foe. Lee is a model NIS officer, admired by his peers, adored by his family and reunited with his true love (Nam Sang-mi, The Grand Chef, Sweet Spy). But his bright future darkens when he learns that the savage murderer of his parents is now the key figure in an Asian narcotics ring. Lee sacrifices everything he holds dear to infiltrate the Triad in a labyrinth of corruption that leads back to the NIS itself.