Park Changho is known since his school days as "Big Mouth" because he talks big and promises big things but cannot follow it up. He is also an infamous lawyer with a very low rate of success who was hired by a mayor because of his incompetence. Unfortunately, he was framed as the notorious and mysterious swindler "Big Mouse" and sent to prison. Go Miho is Changho's loving wife who works as a nurse. She has strong personality and will do anything to prove the innocence of her husband and help solve the case the mayor has given to her husband. Will Miho be successful in proving her husband's innocence? Or will her investigations lead to opening a can of worms?

Season 1 Episode 11 - Episode 11

Changho shifts the power dynamics in the prison to pressure Big Mouse. Doha plants a new warden. Air Date : 2nd-Sep-2022

Season 1 Episode 1 - Episode 1

Changho, who has no money and is about to lose his wife, receives a call from the mayor of Gucheon. Air Date : 29th-Jul-2022  Read More

Season 1 Episode 2 - Episode 2

Changho is charged with drug abuse and locked up in Gucheon Prison. Air Date : 30th-Jul-2022  Read More

Season 1 Episode 3 - Episode 3

Changho needs to maintain recognition as Big Mouse to protect Miho. Air Date : 5th-Aug-2022  Read More

Season 1 Episode 4 - Episode 4

Gong Jihoon makes a bet with Changho to find out his true identity. Air Date : 6th-Aug-2022  Read More

Season 1 Episode 5 - Episode 5

Jihoon approaches Miho to find Seo Jaeyoung's thesis. Does Miho know Changho's true identity? Air Date : 12th-Aug-2022  Read More

Season 1 Episode 6 - Episode 6

Miho joins the prison medical volunteer program to meet Changho. Air Date : 13th-Aug-2022  Read More

Season 1 Episode 7 - Episode 7

Jaeho warns Changho to stop looking into Seo Jaeyoung's thesis. Miho is suddenly attacked. Air Date : 19th-Aug-2022  Read More

Season 1 Episode 8 - Episode 8

Changho is in a mental hospital. Will Changho be able to hide his identity in a state of confusion? Air Date : 20th-Aug-2022  Read More

Season 1 Episode 9 - Episode 9

Changho stands as an informant in Seo Jaeyoung's trial, and Jihoon and Jungrak search for Changho. Air Date : 26th-Aug-2022  Read More

Season 1 Episode 10 - Episode 10

Changho calls out Big Mouse, and an unexpected character turns up at the agreed time. Air Date : 27th-Aug-2022  Read More

Season 1 Episode 11 - Episode 11

Changho shifts the power dynamics in the prison to pressure Big Mouse. Doha plants a new warden. Air Date : 2nd-Sep-2022  Read More

Season 1 Episode 12 - Episode 12

The warden plans to use the prison riots to take out Changho and Miho. Air Date : 3rd-Sep-2022  Read More

Season 1 Episode 13 - Episode 13

The hot-plate restaurant is in ruins. The agitated Changho meets someone unexpected there. Air Date : 9th-Sep-2022  Read More

Season 1 Episode 14 - Episode 14

Changho makes a tempting offer to Chairman Kang. Doha conspires with Yoongab to get rid of Changho. Air Date : 10th-Sep-2022  Read More

Season 1 Episode 15 - Episode 15

Changho prepares for the full-fledged elections against Doha, but Miho's health is in trouble. Air Date : 16th-Sep-2022  Read More

Season 1 Episode 16 - Episode 16

The TV debate begins, and the smoking gun that will bring down Choi Doha is at Miho's fingers. Air Date : 17th-Sep-2022  Read More