From the short synopsis I read, it is a melodrama, mystery kinda fantasy vibe.
It starts by perking the curiosity of the viewers. In the first ep, we were introduced to the characters and slight details of the main story. Chef Eun Gye Hoon had a twin that has died when he is 10years old. He always had this link with his sister. However, when she died, he never felt the connection again. Noh Da Hyun has awakened that link somehow. And was being stalked by one of her colleagues. And then something interesting happens. It kinda reminds me of The Killer's Shopping List. Anyway, I'll continue watching this drama.