This drama is about a materialistic female prosecutor who does not hesitate to use personal attacks, fabricate evidence, and incite perjury in order to win her case is assigned to lead the special task force for sexual assault crimes.

Ma Yi Deum (Jung Ryeo Won) has worked as a prosecutor for 7 years. She sometimes resorts to drastic methods to win cases. One day, Ma Yi Deum is transferred to a special division dealing only with sex crimes.