After finding the same keychain that Jong Sam had found on the night of her father's death in Kang's backpack, she begins to think that Chul Gi is the prime suspect for her father's case. Jong Sam disagrees with her and thinks that she's trying to blame an innocent person. Jin Young looks for more evidence regarding the night of her father's death.
진영은 철기를 '진정길 살인 사건'의 유력한 용의자로 생각하고 종삼은 그런 진영이 못마땅하다.
한편 철기는 수칠을 찾아와 이야기를 건네는데..
