1. Episode 1

After Girigo grants Choi Hyeong-wook a wish, he introduces the app to his friends, who brush him off. But soon, his behavior grows concerning.

2. Episode 2

After a sudden tragedy, Yoo Se-ah realizes Kim Geon-woo may be next and rallies her friends to find a solution. But Girigo proves too sinister to stop.

3. Episode 3

Seeking to cast out evil, Kang Ha-joon takes Se-ah to his shaman sister — sending her to a cursed space filled with fear, trauma and abandonment.

4. Episode 4

Ha-joon, Se-ah and Bangwool investigate Girigo's origins, chasing an online friend of Hyeong-wook's. They soon discover a house that may hold clues.

5. Episode 5

After a wild night out, Lim Na-ri discovers a terrifying truth. Soon, her jealousy takes hold of her as she navigates her feelings for Geon-woo.

6. Episode 6

Born from innocence, Kwon Si-won's friendship with Do Hye-ryung — steeped in jealousy, resentment and revenge — gives rise to Girigo and the curse.

7. Episode 7

Facing sabotage from spirits, the group hunts for the original phone. But as they close in on their goal, danger and darkness lurk at every turn.

8. Episode 8

On the brink of defeat, Se-ah confronts the evil behind the curse. Can she stop the unending deaths once and for all?