The Usual Suspect (1)

Overview

Hak Young is released and set to be investigated without detention. Thanks to a comment left by a netizen, Hong Joo figures out the cause of the strange markings on the floor of Yoo Su Kyung's apartment.

Guest Stars

Moon Ah-ram

Yu Beom's firm's receptionist

Baek Sung-hyun

Do Hak Young [Cable Man]

Jeon Kuk-hwan

Soo Kyung's father

Lee Min-jae

Seung Won's classmate

Yoo In-soo

Seung Won's classmate