Due to the release of a new product, Jae Won stays in the office by herself till late at night when her longtime stalker barges into the office, trying to attack her. Later, Jae Won finds out the stalker’s identity. Nam Tae Ju, an insurance investigator, tells Jae Won that they’re suspecting Jae Won’s stepfather for her mother’s death. Meanwhile, Jae Won sees a suspicious message on her husband’s phone, only to find out later that he is cheating on her. (Source: Viu)