Big Mouth (South Korean TV series)

Big Mouth is a 2022 South Korean television series directed by Oh Choong-hwan and starring Lee Jong-suk and Im Yoon-ah. It aired on MBC TV from July 29 to September 17, 2022.

The series is a noir legal drama centered around Park Chang-ho (Lee Jong-suk), a third-rate lawyer with a pathetic winning record, nicknamed "Big Mouth" because he's all talk. He becomes embroiled in a murder case and is mysteriously framed as the infamous con artist "Big Mouse." In order to survive and protect his family, including his wife Go Mi-ho (Im Yoon-ah), a nurse, he must uncover a massive conspiracy among the privileged upper class.

As Park Chang-ho navigates the dangerous world of prison, he attempts to prove his innocence and expose the true culprits behind the framing and the larger criminal network at play. The series explores themes of corruption, power, justice, and the sacrifices made to protect loved ones.