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E1
61 min 1. Episode 1
After a brutal attack, Jeong Su-in learns she may not be the same person as before. Choi Jun-kyung discovers the monsters are forming an organization.
E2
43 min 2. Episode 2
Looking for his sister, Seol Kang-woo investigates Saejin Church, where he finds Su-in. But he soon encounters trouble — and the two fight to escape.
E3
43 min 3. Episode 3
After raiding Saejin Church, Jun-kyung begins suspecting Kim Chul-min is hiding something — later tracking him down meeting with Su-in and Kang-woo.
E4
53 min 4. Episode 4
After revealing everything he knows to Chul-min, Kang-woo agrees to help save Su-in. But when the plan goes awry, lives are put at risk.
E5
48 min 5. Episode 5
Despite being on the run, Su-in tries to warn Jun-kyung. But as Team Grey's raid plays out, Su-in and Kang-woo realize it's all part of a bigger plan.
E6
52 min 6. Episode 6
Su-in meets with Seol Kyung-hee, who requests an alliance. But the parasites' ploy for power goes into full effect — and it's up to Heidi to stop them.
The parasites hidden amongst us.
When unidentified parasites violently take over human hosts and gain power, humanity must rise to combat the growing threat.
Genres: Sci-Fi & Fantasy, Action & Adventure, Drama
Stars: Jeon So-nee, Koo Kyo-hwan, Lee Jung-hyun, Kwon Hae-hyo, Kim In-kwon
