The Mysterious Gentleman

Summary

A man who introduces himself as K's old friend offers the detectives lavish pay and a chance to partake in a special mission -- but there's a catch.

Guest stars

• Jang Kwang as Jang Gwang
• Kriesha Chu as Kriesha
• Ahn Il-kwon as Ahn Il-Gwon
• In-Ah Seo as In-Ah Seo
• Kim Bum-joon as Club Owner
• Lee Moon-Jae as Crazy Piano
• Shin So-yi as Mi-Ra Jang
• Yoon Sung-ho as Ppak-Gu
• Yoo Yeon-seok as Yoo Yeon-seok