Promise is an easy word to say but it is hard to keep. Just because of a simple promised can change a person life forever. “I’ll come back to stay by your side” The pinky finger hooking with each other like a knotted rope. Because of the word come back have made Junhyung’s life turns into miserable. He has waited for the girl he loves for six months after she left but she doesn’t come back like her promise until the day...

This is about Yang yoseop, diagnosed with paranoid schizophrenia who lived under Yong Junhyung responsibility because of a mistake in the past. And jung Eunji, worked as a columnist who slowly being a precious part of Yoseop's life.  "Can a schizophrenic has a love and being loved? Or fate just too cruel to be true?" Inspired by a novel with the same title "The soloist" by Steve lopez, but the whole stories will be so different.

''Eğer bu karanlığın içinde beni hayata bağlayan ufacık bir ışık bulduysam... O ışık sensin...''