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Female lawyer Yu Ji-yeon (Kim Yun-jin) is exceptional and has never lost a case. At the school’s sports meeting, her daughter was kidnapped in chaos. Yu Ji-yeon got to know the purpose of the kidnapper: he was not asking for money but for Yu Ji-yeon to defend a suspected murderer. A month ago, a young woman was killed at her home and her body was dumped. Jeong Cheol-jin became the prime suspect because of his fingerprints and footprints left at the site. The first trial sentenced Jeong Cheol-jin to death and there is only four days from the second trial now. Yu Ji-yeon asked Officer Kim, her primary school classmate who was deeply involved in disciplinary violation for help and the investigation quickly started. Yu Ji-yeon finds out that the circumstance is indeed suspicious and it has only revealed the tip of the iceberg…...