Joowon Kang, a detective in the Violent Crimes Unit, is overworked in one of the most thankless jobs there is. One day, while pursuing a criminal, a familiar woman gets caught in the crossfire: Hayoon Son, the love of Joowon’s life, who said they should part ways five years ago. The universe seems to be pushing Joowon and Hayoon back together, but do they dare reach out to each other now, after walking away once before? Can the chasm between them ever be crossed again?