When the Phone Rings

1 Episode 1

After receiving a call from Hong Hee-joo's kidnapper, Paik Sa-eon attempts to learn more about him — only to find it's hard to escape his surveillance.

2 Episode 2

Sa-eon works quickly to track down the caller, forcing Hee-joo to stay hypervigilant. Despite her fears, she continues to play along with the ruse.

3 Episode 3

After Sa-eon experiences an attack, he grows wary of Hee-joo's relationship with her friend. Meanwhile, an ominous figure makes his presence known.

4 Episode 4

5 Episode 5

6 Episode 6

7 Episode 7

8 Episode 8

9 Episode 9

10 Episode 10

11 Episode 11

12 Episode 12