Description: Set in the world seen in Hitoshi Iwaaki's manga series Parasyte, Jeong Su-in (Jeon So-nee) is infected by a parasite but it fails to completely take over, Seol Kang-woo (Koo Kyo-hwan) searches for his sister and Choi Jun-kyung (Lee Jung-hyun) seeks to destroy all the parasites with his "Grey Team" taskforce, in this South Korean sci-fi horror series co-written and directed by Yeon Sang-ho.