Follow the lives of a group of young adults living in a brownstone apartment complex on Melrose Place, in Los Angeles, California.

Kimi lives in a small, low-cost housing complex located in the seaside town of Kurosaki, with horrific incidents starting to occur and trouble seemingly following her wherever she goes. Is an ancient evil stalking the residents of Housing Complex C?

Unprecedented real incidents that took place in Korean apartments! And six residents uncovering the mysteries of the apartment! The year changes with every episode.

The cast directly faces incidents that happened in each era and solves the “secret of the apartment.” Who will become the main character to uncover the hidden secret? A variety show full of fantastic chemistry and real laughter, based on real apartment incidents, a time-and-space transcending true story chase drama.

Mysterious cases take place at an apartment complex which is about to go under reconstruction. Lee Goong-Bok is a real estate agent that works with apartments there. She has a meddlesome type of personality. In Cheol-Ho is a veteran detective.