 His father Heo Il-joong (Choi Jung-woo) adopts stepson Chi-hyun (Lee Ji-hoon) after his marriage with Kang Seo-hee (Hwang Shin-hye).Joon-jae's mother Mo Yoo-ran (Na Young-hee), after the divorce, works as a housekeeper after running out of money following the divorce.During his search for his mother, Joon-jae becomes a con-artist, using his good looks, wits, and skills in hypnotism in conducting scams with his mentor, Jo Nam-doo (Lee Hee-joon) and computer hacking genius, Tae-oh (Shin Won-ho).