A family of thieves torment a nefarious businessman.

Hong Mu-Hyeok is a quiet high school music teacher with a secret. His family descends from the notorious Hong Gil-Dong, a Robin Hood styled thief. He has targeted Lee Jeong-Min, a ruthless businessman, for destruction. A newly appointed Special Prosecutor is sworn to destroy both. And the new prosecutor is his fiance's brother...—L. Y. Hostrawser