Sun Young, a famous news and midnight radio-broadcasting speaker decide to leave her work to take her daughter to America formedical treatment. In the last recording program of leave-taking, she receive a lot of threatening messages… A man named Dong Soo appear in the apartment of Sun Young and menace her diseased daughter and her little sister Ah Young who is taking care of the children. Dong Soo requests Sun Young to follow his instructions, if not, he kills her family. Sun Young has to find out who Doog Soo is and rescue her daughter and family.