The detectives receive a text message from K that was written three months ago. It asks them to come to Incheon, where their final test awaits.
Elenco:
Yoo Jae-suk
,
Park Min Young
,
Oh Se-hun
,
Kim Jong-min
,
Ahn Jae-wook
,
Kim Se-jeong
,
Lee Kwang-soo
.
