Both story have similarity. In the movie Secret, the female lead went to the future after playing piano in that piano room at her school which could make her travel to the future and meet the male lead in the same piano room at the old building of his school. In Night Wanderer, the male lead could travel to the future after fixing the lamp in his apartment and meet the female lead who happen to be the resident of the apartment in the modern era.

Both of the drama related to the present and the past. Chicago Typewriter depicts three resistance fighters who lived during the 1930s Japanese occupation of Korea and are reincarnated into the present as a best-selling writer in a slump, a fan, and a ghostwriter while Night Wanderer is about a female forensic doctor from the modern era who met a mystery guy from 1937 Republican era who claimed to come to the modern era every night and return to his era the next morning.

Just like Night Wanderer, Queen Inhyun's Man drama is also a shuttle time-travel drama where the male protagonist shuttling back and forth between modern era and Joseon era. In Night Wanderer, because of the lamp from apartment 699, it brings the male protagonist to the modern era and in Queen Inhyun's Man, the male protagonist can go to the modern era because of the mysterious talisman.