Yoo In-sik

P4: are the new recruits in the violent crimes unit at Gangnam Police Station. The journey of four young cops as they fumble, learn, fall in love and find their way to becoming people the citizens can trust.

A tycoon Lee Joong-Man murderd in 1998 by his personal driver Ji Se-Gwang whom having affair with Lee's mistress Eun Bi-Ryung. Lee's wife Park Gi-Soo wrongfully convicted of the murder of Lee. Ji Se-Gwang became a special inspecti...