A remake of the BBC drama "Criminal Justice" that delves into the criminal justice system through the story of two men surrounding a woman's murder.

It tells an unpredictable 24-hour love story of the four-dimensional innocent girl Jung Saet Byeol who was once a troublemaker and the adorkable caring male store manager, Choi Dae Hyun, in the context of a convenience store. They have met each other accidentally 4 years ago, back then Saet Byeol asked Dae Hyun to buy cigarettes for them. Until now, Saet Byeol comes to the convenience store Dae Hyun runs for a part-time job, their hilarious romantic story starts.

People commit variety of ugly crimes these days. However, they forgive themselves by giving testimony every week. They believe that they can repent just by having faith. But the truth is that they have faith to repeat the sins again and again without remorse. These people atone for their evil deeds just to feel comfortable and carefree. It is not about the victims who are suffering because of them. They say every people are equal before the religions. But it is time to discriminate people who only uses them for their interest. Screening if they are really good people, punishing if they deserve to be punished, and defending justice is needed for modern day religion. A priest with this sense of justice teams up with a detective and a prosecutor. They try to solve the mysterious death of an elderly priest and serve justice.