Big Mouth revolves around a struggling lawyer with a 10 percent success rate as he takes a murder case that transforms him into a brilliant swindler known as ŌĆ£Big Mouse.ŌĆØ In order to survive and protect his family, he must reveal a massive conspiracy among the high society. The new poster shares a glimpse of the married couple, Park Chang Ho (played by Lee Jong Suk) and Go Mi Ho (YoonA), standing in two different places that exude contrasting energy. While Park Chang Ho stands in a dark prison all by himself, looking desperate and miserable, Go Mi Ho is surrounded by beautiful plants in bright daylight as she gazes into space as if she is looking at her troubled husband in prison. In another poster, the two both share the same distressed look under presumably different circumstances. With a wounded face and messy hair, the two exude a different vibe compared to the other poster. Viewers are left wondering how the couple will break through their hardship while being far apart from each other. Big Mouth will premiere on July 29th following Doctor LawyerŌĆśs conclusion. Source (1)