Circle

Part 1 deals with Woo Jin and his twin brother Beom Gyun. Beom Gyun has been following the tracks of an alien they both saw when they were young. Part 2 is about a murder case that happens in supposedly a crimeless city, Smart City. Joon Hyeok enters Smart City without the care chip implant to his brain to solve the case and find his brother.

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 the aliens’ hideout and then loses contact with him. In Part 2, Joon Hyeok investigates Kim Min Ji case and realizes that her lost memory had been recovered.

In Part 1, Woo Jin and Jeong Yeon witness what is supposedly a suicide and from the body of the victim comes out a blue bug. They cut it open to find that it’s a microrobot. In Part 2, Joon Hyeok almost catches Bluebird, but he fails as Ho Soo interferes. Ho Soo shouts out that he doesn’t want to remember, and Joon Hyeok says he doesn’t remember anything, so he doesn’t know who he is.

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 with the toy star that he gave her 10 years ago. In Part 2, Bluebird leads Joon Hyeok to his past to find out who he is. It turns out he is Beom Gyun, and Bluebird is Jeong Yeon.

In part 1, After Woo Jin shows Jeong Yeon the photo of them together ten years ago, she gets confused about who she is. In part 2, Beom Gyun meets Jeong Yeon who had become Bluebird. Meanwhile, Ho Soo starts having nosebleed as he slowly recovers his memories.

In part 1, While digging for clues, Woo Jin finds a picture of Professor Han and his dad standing in front of Eunsung Psychiatric Hospital. In part 2, Beom Gyun meets Dong Geon. From him, he hears that the person who gave the presentation about the calming care system in the past was in his twenties, and he suspects that the chairman may be Woo Jin.