Lee Jung Do's father is a swindler and intends to resume his old habits as soon as he gets out of prison, even though he has promised his son to go straight. Because of his father's record, LJD had a hard time finding jobs, but overcomes these obstacles, passes the law exams, and becomes a prosecutor. Oh Young Joo is a detective, and her precinct is in LJD's neighborhood. Kim Joon Ki, who comes from a well-off family, is also keen to become a prosecutor. He meets OYJ on a blind date and continues to pursue her even though she isn't interested. Moon Chae Ri is a small time swindler who hooks up with LJD's dad on a last heist plan, before fulfilling his promise to his son to stay out of trouble.

一个上下两代都是欺诈师的家庭，到了第三代的李正道（朴建衡 饰），决心不再继承“家族传统”，不想像爷爷和父亲那样过着道处被人追赶的日子，居然成了一个正义感十足的检察官。尽管由于家庭原因正道并没有获得一帆风顺的幸福生活，但他始终乐观地等待着苦尽甘来的转折。

전과자 집안 출신 검사 이정도, 세상이 구질구질하다 느끼지만 가수의 꿈을 가지고 있는 문채리, 냉철한 검사 김준기, 아픔을 가지고 있는 형사 오영주. 이 4명의 사람들이 한 동네에서 살면서 벌어지는 일들을 담은 따뜻한 드라마