This 2018 Korean drama revolves around Kim Moo Young a complex, mysterious man with a forgotten past. He meets and falls in love with Yoo Jin-Kang , and although her initial impression of him is pretty negative, later she discovers that Moo young is innocent and struggling to recognize about his past life. However, her older brother, Yoo Jin Gook
a homicide detective, doubts that Moo-Young is more sinister that he lets on, oblivious to the fact that he is the key to both Moo-young and Jin-Kang's intertwined history. The situation becomes more complicated when Moo young regains his past memories which leads him to find the truth about his father's death and more.