동진은 은실의 도움을 받아 미정의 대학 시절에 일어난 사고까지 취합한다. 그러나 데이터가 쌓일수록 함께 누적되는 오류. 그 오류를 막을 방법은 하나뿐이다. 가설들을 직접 시험할 수밖에 없다.
To uncover the missing years in his investigation, Dong-jin reaches out to Eun-sil, the one person who has been close to Mi-jung since their university days. With her help, he uncovers more accidents and deaths tied to her, strengthening his theory. As the puzzle pieces fall into place, Dong-jin realises the only way truly to validate his findings is to put himself to the ultimate test.
