Chul-Soo is the only son of a legendary thief family. He falls in love with Young-Hee who is a police officer. Her family is also a police family. To get her parents’ permission to marry, Chul-Soo undertakes an exam to become a police officer, but both families work to prevent their marriage.

Ordinary university student Min-Jae meets expert bank thief Suk-Goo. Min-Jae soon works Suk-Goo and his fraud team. Their heists go well, but they don’t trust each other.