꼬여가는 사건을 어떻게든 풀어보려는 해준과 윤영. 의심스러운 인물은 점점 더 늘어나지만, 범인이라고 생각하기엔 모두들 이해되지 않는 부분이 있다. 그 때, 윤영이 모든 의문점을 해소시키는 결정적 상황을 맞이한다.
Hae-jun feels it's unnecessary to share what he saw with Yoon-young, complicating the situation. He grows agitated as events deviate from his expectations. Meanwhile, Yoon-young is surprised by Soon-ae falling for Hee-seob despite her attempts to break them apart. Later, Yoon-young understands why Hae-jun hid things from her, and as she talks, something clicks in Hae-jun's mind.