Signal Season 1 Episode 15
Overview
Park Hae Young is framed and arrested for the murder of the Section Chief. Cha Soo Hyun sets out to save Lee Jae Han and to find the one witness who can bring down their enemy.
Director: Kim Won-suk
Guest Star: Jeon Su-ji, Kim Woo-seok, Oh Ki-hwan, Seo Ji-hoon, Shin Yi-Joon