Out of nowhere, a homeless Tae-sung shows up and sets up his so-called house in an apartment’s playground. The playground is not only for children but also for neighbors who come and go to share their stories. Tae-sung observes what people do around the playground and sometimes he helps them to solve the problem. When the righteous homeless becomes almost like a sheriff of the playground, suddenly female residents disappear one by one.

The movie director Ba Ram, who happened to meet Mool Kyul at a travel destination, somehow keeps hovering around her because he can't help but care. Just like that, the people who have been busy chasing precious dreams begin to share their wounds and pain with each other and open their hearts... The moment one gives up on dreams, will everything be lost? Can these two young people who couldn't have any courage, create a brilliant melody of hope again?

Out of nowhere, a homeless Tae-sung shows up and sets up his so-called house in an apartment’s playground. The playground is not only for children but also for neighbors who come and go to share their stories. Tae-sung observes what people do around the playground and sometimes he helps them to solve the problem. When the righteous homeless becomes almost like a sheriff of the playground, suddenly female residents disappear one by one.

Ji-hoon became a wanted man because of betrayal by one of his colleagues. To avoid being arrested by police, he sneaks into a stranger’s house one day. However, what was happening in the house was that wife walks in on her husband having an affair with another woman? Under the absurd situation, Ji-hoo captures them all as his hostage. The hostage captor has become a welcome guest for the wife, Eun-joo. Eun-joo has dropped by her house to take a short break while holding a funeral. However, she finds two unwelcome guests in the house. One is her friend, who is having an affair with the husband. The other one is the hostage captor, a stranger, whom Eun-joo has never seen before. Nonetheless, the hostage captor is on Eun-joo’s side now, who has no one to lean on.

Gain visits her hometown to see her critically ill father only to find an awkward tension between them. She gets to know a man named Dokyung who came from Seoul and becomes close to him. As Gain sees who he really is, though, she feels her life is being threatened.

Out of nowhere, a homeless Tae-sung shows up and sets up his so-called house in an apartment’s playground. The playground is not only for children but also for neighbors who come and go to share their stories. Tae-sung observes what people do around the playground and sometimes he helps them to solve the problem. When the righteous homeless becomes almost like a sheriff of the playground, suddenly female residents disappear one by one.