Big Mouth — Season 1

MBC Ended Drama Thriller Legal

16 Episodes · Premiered July 29, 2022 · Ended September 17, 2022

The story of a lawyer with a 10% winning rate, digging into the bare faces of privileged people stained with a huge conspiracy to survive by becoming a genius fraudster also known as 'Big Mouth' overnight after being caught up in a murder case he accidentally undertakes.

All Seasons

Episodes

Big Mouth S1 E01 – "Because I'll show you what real despair is like"

Third-class lawyer Park Chang-ho (Lee Jong-seok) is on the brink of divorce from his wife Go Mi-ho (Im Yoon-ah) after being scammed.

Chang-ho (Lee Jong-suk) wakes up in the hospital and is charged with drug use and is imprisoned in Gucheon Prison. By the way, is Park Chang-ho a rare genius con artist Big Mouse?

Big Mouth S1 E03 – Don't touch my wife The moment you touch them, they die.

Who the hell made me Big Mouse? One thing is clear, that Miho (Lim Yoona) can only be protected by being recognized as a Big Mouse.

Big Mouth S1 E04 – Drug list... Are you sure I don't know?

Is Chang-ho (Lee Jong-suk) the real Big Mouse? Gong Ji-hoon (Yang Kyung-won) proposes a bet to find out Chang-ho's identity...

Big Mouth S1 E05 – I need to start working in my own way.

Chang-ho (Lee Jong-suk) has an interrogation with a witness who knows important information about Big Mouse, and Ji-hoon (Yang Kyung-won) and Do-ha (Kim Joo-hyun) watch it nervously. Meanwhile, Ji-hoon approaches Mi-ho to find Seo Jae-yong (Park Hoon)'s thesis through Mi-ho (Im Yoon-ah), but does Mi-ho know the identity of Park Chang-ho? Or is he being deceived?

Big Mouth S1 E06 – Are you... Big Mouse?

Did Chang-ho (Lee Jong-suk) deceive even Mi-ho (Im Yoon-ah)? Miho, who joined the prison medical volunteer work to meet Chang-ho, is unfamiliar with Chang-ho, who is receiving special treatment in prison.

Big Mouth S1 E07 – I'm going to start hunting.

Jae-ho (Lee Yoo-jun) warns Chang-ho (Lee Jong-suk) not to listen to Seo Jae-yong (Park Hoon)'s thesis. Mi-ho (Im Yoon-ah), who is one step closer to the thesis, is attacked by a monster.

Big Mouth S1 E08 – Do you know where the most perfect place to hide lies?

Park Chang Ho (Lee Jong Suk) is imprisoned in a mental hospital. Can Chang Ho hide his identity in a state of confusion?

Big Mouth S1 E09 – The reason I came here on my own feet is simple.

Chang-ho (Lee Jong-suk) goes directly to the informant of the murder trial of Seo Jae-yong (Park Hoon) through SNS live, and Ji-hoon (Yang Kyung-won) and Jung-rak (Jang Hyuk-jin) track Chang-ho in real time.

Big Mouth S1 E10 – Big Mouse.. you too must suffer.

Chang Ho (Lee Jong-suk) called Big Mouse, and he responded. An unexpected person appears at the promised time...

Big Mouth S1 E11 – I'm throwing this plan away.

Chang-ho (Lee Jong-suk) turns the game of power in the prison and begins to tighten Big Mouse's neck. Doha (Kim Joo-heon) also planted a new warden and tried to find Big Mouse.

Big Mouth S1 E12 – I want you to know the truth about Seo Jae-yong's case.

Taking advantage of the chaos of the entire prison due to the riot, the warden plans to eliminate Chang-ho (Lee Jong-suk) and Mi-ho (Im Yoon-ah).

Big Mouth S1 E13 – I'm going to expose all the sins they committed...

No synopsis available.

Chang-ho (Lee Jong-seok) visits Chairman Kang and makes a proposal that can shake his heart, and Do-ha (Kim Joo-heon), who was bothered by such a thing, joins hands with Yoon-gap (Jung Jae-seong) and plans to get rid of Park Chang-ho.

Big Mouth S1 E15 – That fish farm... I need to get rid of it.

Chang-ho (Lee Jong-seok), with the help of Ji-hoon (Yang Kyung-won), is about to start a full-fledged election battle with Doha (Kim Joo-heon), but a red light comes on for Mi-ho (Lim Yoon-ah)'s health.