Lee Jeong-do (Park Geon-hyeong) comes from a swindler family; although his grandfather and father are ex-convicts, he is a public prosecutor with absolute sense of justice, people called him the “Community Conflict Solver”. Homicide detective Oh Young-joo (Park Si-yeon) has a dark past, but she strives to live hard; she is sent to Jeong-do’s community police station, where both of them start their encounter. Kim Joon-gi (Lee Han) is another public prosecutor who falls in love with Young-joo, even though he knows that Young-joo loves Jeong-do. Their relationships become more complicated subsequent to the appearance of Moon Chae-ri (Lee Ha-na), a runaway daughter of a reputed family; Chae-ri sees Joon-gi as her prince charming and attempts to get close to him, until she meets Jeong-do…