Insatiably ambitious residents of Seoul's most luxurious apartment throw their morals aside to achieve dizzying heights of wealth and power.

The drama tell the story of three brothers who struggle with their own lives separately, and a woman who is both cold and distant due to the many hardships she faced in her life. Together they learn to enjoy and appreciate life and heal their past wounds.

In this horror thriller drama, a detective who catches ghosts and his passionate assistant run into a mysterious woman and get involved in a bizarre incident.