A lawyer with a ten-percent winning rate is caught up in a murder case and becomes the notorious and genius con artist, Big Mouse, overnight. In order to survive and protect his family, he tries to reveal the true colors of the privileged people involved in a huge conspiracy.
Lee Jong-suk
Park Changho
Yoona
Go Miho
Kim Ju-hun
Choi Doha
Kwak Dong-yeon
Jerry
Yang Kyung-won
Gong Jihoon
Ok Ja-yeon
Hyeon Joohee
Oh Eui-sik
Kim Soontae
Kim Jeong-hyeon
Jung Chaebong
Lee Yoo-jun
Han Jaeho
Oh Ryoong
Lee Doogeun
Yoon Seok-hyun
Cha Seungtae
Park Hoon
Seo Jaeyoung
