W

A romance takes place between Kang Cheol (Lee Jong-suk), who is super rich and exists in the webtoon "W," and Oh Yeon-Joo (Han Hyo-joo) who is a surgeon in the real world. Oh Seong-moo, the father of cardiothoracic surgeon Oh Yeon-Joo, mysteriously goes missing while writing the last chapter of his webtoon "W". Yeon-Joo goes into his office looking for him, but a hand from his monitor suddenly pulls her in, and she finds herself on the rooftop of a building, next to a bloodied man. She manages to save the person, only to realize that he is Kang Cheol, the main character of her father's webtoon. Yeon-Joo later discovers she can only enter and leave the webtoon depending on Kang Cheol's feelings.