Lee Jaemin is a private agent in South Korea, working for the government together with special forces in order to carry out special and secretive missions for the country. He is the eldest son of his family and therefore bares many responsibilities. He would do anything for his family and it's honour or name. Even if it meant incapacitating his happiness. In order to stabilise his family with wealth, he is asked to marry Florence who is the daughter of a very powerful business man. When Florence and Jaemin are married, he didn't realise that the enemy he has been looking for all these years was now much closer to him than he could possibly think of. Not does this only put him in danger but also the people he so immensely cared about.

After Marina lost her mother in a tragic accident, she moves with her best friend Valerie to Los Angeles to pursue her dream. Not soon after arriving there, Marina experiences events that she can't explain or understand and one of them is Grayson. The familiar yet terrifying feeling she would get whenever she met him was something she couldn't comprehend. It was as if they were both old souls that were both somehow connected. Every time she got closer to Grayson the more she came closer to the ugly truth that he didn't wanted her to know. When the dark secret unravelled, Marina never thought in a million years that this could be a part of the real world. Not did Marina only unravel the darkest secret but also put herself and others at risk.