S1, F4: In-ae sees Park Young-tae at Cheon Tae-woong's house and is sure that he is the one who killed Kap-soo and Kwang-cheol.


S1, F4: In-ae sees Park Young-tae at Cheon Tae-woong's house and is sure that he is the one who killed Kap-soo and Kwang-cheol.