Part 1 deals with Woo Jin and his twin brother Beom Gyun. Beom Gyun has been following the tracks of an alien they bo...

In Part 1, Woo Jin meets the woman who he suspects is an alien. And he gets a call from his brother that he had found...

In Part 1, Woo Jin and Jeong Yeon witness what is supposedly a suicide and from the body of the victim comes out a bl...

In Part 1, Jeong Yeon gets attacked by a woman that claims that she’s an alien and shows Woo Jin a picture of her wit...

In part 1, After Woo Jin shows Jeong Yeon the photo of them together ten years ago, she gets confused about who she i...

In part 1, While digging for clues, Woo Jin finds a picture of Professor Han and his dad standing in front of Eunsung...

In Part 1, Woo Jin finds out that Professor Han is behind Beom Gyun’s disappearance. In Part 2, Everyone who’s been l...

In part 1, Woo Jin finds Beom Gyun in the house they used to live in when they were little. In part 2, the chairman o...

In Part 1, Woo Jin realize that Beom Gyun is losing his memories. And at their old house, Woo Jin and Jeong Yeon find...

In Part 1, Dong Geon and Human B join hands and try to come up with a plan to get Woo Jin and Jeong Yeon. In Part 2, ...

The person coming down the stairs turned out to be Woo Jin’s clone. At first, Joon Hyeok denies that he’s Woo Jin bec...

Joon Hyeok suspects that Mayor Yoon has seen something that can be used against Dong Geon. Since Jeong Yeon can unloc...