The story unfolded in a very mysterious way that it intrigued me from beginning to end. The deja vu and amnesia were a well balanced that it was difficult to assume its a memory or dream. Everything seemed so real to be fake.

The cinematic beauty was amazing, colours gave a subtle touch to the thrilling and sad story which enhanced it beautifully.

The acting was top-notch by Seo Yea Ji, she was the soul and performed like a pro as ever. Each expression, of fear, anger, and confusion was amazing.
Kim Kang Woo was good, I watched him for the first time he has the aura of darkness.

Overall it is a good thriller.
But it won't be an option for rewatching because when the mystery is known then nothing remains to see.