Inspector Joy S01E15 - The Hidden Pocket In The Sock

Yi Eon receives evidence from Tae Seo that Park Seung was the mastermind in poisoning the crown prince. Jo Yi witnesses Park Seung hiding a letter inside the sock that he had specially made. Tae Seo head to Hanyang to testify against his father's crimes, but Park Seung and Do Soo head to Ganghwa Island.