"One Day" mainly tells the story of an ordinary, quiet and honest college student Hyeon soo Kim (played by Kim Soo Hyun). One day, Kim Hyun-soo became a suspect because of a female murder case, and the only person who helped him was a third-rate lawyer Shen (Che Chengyuan). This is a suspenseful story that challenges the contradiction between the judicial and criminal systems, which was triggered on the Internet due to the ban on the 19 bridge and the lack of ice.
Kim Soo Hyun, who is called YEATION script master by netizens, is not disappointing at all in this TV series. His emotional transition is quite delicate, which makes people feel that his acting skills have broken through again. Che Chengyuan, who played with him, had a strong gas field to dominate the audience as soon as he appeared.