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?
Release Date
PremieredBig Mouth Season 1 released on July 29, 2022.
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Because I'll show you what real despair is like
Chang-ho, who has no money and is about to lose his wife, receives a call from the mayor of Gucheon.
Are you Big Mouse?
Chang-ho is charged with drug abuse and locked up in Gucheon Prison.
Don't touch my wife.
Chang-ho needs to maintain recognition as Big Mouse to protect Mi-ho.
Drug list... Are you sure I don't know?
Gong Ji-hoon makes a bet with Chang-ho to find out his true identity.
I need to start working in my own way.
Ji-hoon approaches Mi-ho to find Seo Jae-young's thesis. Does Mi-ho know Chang-ho's true identity?
Are you... Big Mouse?
Mi-ho joins the prison medical volunteer program to meet Chang-ho.
I'm going to start hunting.
Jae-ho warns Chang-ho to stop looking into Seo Jae-young's thesis. Mi-ho is suddenly attacked.
Do you know where the most perfect place to hide lies?
Chang-ho is in a mental hospital. Will Chang-ho be able to hide his identity in a state of confusion?
The reason I came here on my own feet is simple.
Chang-ho stands as an informant in Seo Jae-young's trial, and Jihoon and Jungrak search for Chang-ho.
Big Mouse.. you too must suffer.
Chang-ho calls out Big Mouse, and they respond. An unexpected character turns up at the agreed time.
I'm throwing this plan away.
Chang-ho shifts the power dynamics in the prison to pressure Big Mouse. Do-ha plants a new warden.
I want you to know the truth about Seo Jae-yong's case.
The warden plans to use the prison riots to take out Chang-ho and Mi-ho.
I'm going to expose all the sins they committed...
The hot-plate restaurant is in ruins. The agitated Chang-ho meets someone unexpected there.
Boss is dangerous.
Chang-ho makes a tempting offer to Chairman Kang. Do-ha conspires with Yoon-gab to get rid of Chang-ho.
That fish farm... I need to get rid of it.
Chang-ho prepares for the full-fledged elections against Do-ha, but Mi-ho's health is in trouble.
It turned out to be a radiation victim.
The TV debate begins, and Mi-ho almost has the smoking gun that will bring down Choi Do-ha.
Big Mouth
Season 1
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?
Release Date
PremieredBig Mouth Season 1 released on July 29, 2022.
Your Progress
Track your watching progress by signing in
Sign In to Track ProgressBecause I'll show you what real despair is like
Chang-ho, who has no money and is about to lose his wife, receives a call from the mayor of Gucheon.
Are you Big Mouse?
Chang-ho is charged with drug abuse and locked up in Gucheon Prison.
Don't touch my wife.
Chang-ho needs to maintain recognition as Big Mouse to protect Mi-ho.
Drug list... Are you sure I don't know?
Gong Ji-hoon makes a bet with Chang-ho to find out his true identity.
I need to start working in my own way.
Ji-hoon approaches Mi-ho to find Seo Jae-young's thesis. Does Mi-ho know Chang-ho's true identity?
Are you... Big Mouse?
Mi-ho joins the prison medical volunteer program to meet Chang-ho.
I'm going to start hunting.
Jae-ho warns Chang-ho to stop looking into Seo Jae-young's thesis. Mi-ho is suddenly attacked.
Do you know where the most perfect place to hide lies?
Chang-ho is in a mental hospital. Will Chang-ho be able to hide his identity in a state of confusion?
The reason I came here on my own feet is simple.
Chang-ho stands as an informant in Seo Jae-young's trial, and Jihoon and Jungrak search for Chang-ho.
Big Mouse.. you too must suffer.
Chang-ho calls out Big Mouse, and they respond. An unexpected character turns up at the agreed time.
I'm throwing this plan away.
Chang-ho shifts the power dynamics in the prison to pressure Big Mouse. Do-ha plants a new warden.
I want you to know the truth about Seo Jae-yong's case.
The warden plans to use the prison riots to take out Chang-ho and Mi-ho.
I'm going to expose all the sins they committed...
The hot-plate restaurant is in ruins. The agitated Chang-ho meets someone unexpected there.
Boss is dangerous.
Chang-ho makes a tempting offer to Chairman Kang. Do-ha conspires with Yoon-gab to get rid of Chang-ho.
That fish farm... I need to get rid of it.
Chang-ho prepares for the full-fledged elections against Do-ha, but Mi-ho's health is in trouble.
It turned out to be a radiation victim.
The TV debate begins, and Mi-ho almost has the smoking gun that will bring down Choi Do-ha.