The melodrama revolves around people who get caught up in their own desires with tragic results. Park plays a man who throws his life away seeking revenge and Jang an ill-fated woman who falls in love with him.
The man will sacrifice anything in order to discover the truth in two murder cases involving a succession battle, while the woman must cope with being a suspect in her husband's murder and eventually finds hope in love.
Park and Jang attended a press event for the series in Seoul on Thursday and shared their excitement in taking part in it.
"I was about to take a break. But immediately after I read the script, I changed my mind", Park said. He said it was precisely the difficulty of the part that attracted him. "The role quenched my thirst for dark, serious work, something for which I had yearned for quite some time", he said.
Playing a former star whose life has been ruined by a bad marriage, and becomes an emotional roller coaster, Jang said, "I felt like I was on two different shows, which made it all the more exciting".
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