A life-changing story of a man who has lived as a loner his entire life. Jae Shik begins to live together with a child with a hearing-visual disability, as they change each other's lives and try to find a way to communicate.

In a future world, the 'Wonderland' service – which uses AI to replicate people who have died – has become widespread. Baili signs up for Wonderland in order to hide her impending death from her young daughter. After an accident leaves her boyfriend Tae-ju in a coma, Jung-in passes the days chatting with an AI-revived version of Tae-ju who has become an astronaut in space. In this way it is possible for people to choose a life free from longing and sadness.

Suk-Jin became a popular PD of a newsroom by breaking a story on unsanitary food, but the story turned out to be false. He then lost his job as a PD.Several years later, he comes back as a PD for a cultural division at a network. The new CEO of the broadcasting station privately asks Suk-Jin to make a documentary on a terminally ill man and his wife. The CEO promises to make him a director if the program receives high ratings