Miss & Mrs. Cops (2019) on Netflix

Plot summary

Mi-young was once the top officer of the Major Crimes Unit, and after having a baby she sits behind a desk at the civil complaints center, handling paperwork and looking after her son and her unemployed husband at home. Eager rookie Ji-hye is assigned to the same team and the two bicker from the moment they meet, and they are also sisters-in-law, which neither enjoys. A woman who had come in to file a complaint is struck by a car in front of them, and the two learn she had been told her spy cam footage would appear on a community site within three days. With the station too busy to act in time, Ji-hye's drive and Mi-young's sense of duty push them to look into the case themselves.