Ma Yi-Deum 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.
Young Shil learns about her forgotten past. Cornered, Gap Soo makes a dangerous proposal to Yi Deum. When Jin Wook becomes aware of this, he anticipates Gap Soo's next move.
