In "Signal" Jo Jin Woong said that he was going to kill the person that had kidnapped Kim Hye Soo.
On the 10th episode of tvN Friday/Saturday drama "Signal" (script Kim Eun Hee, director Kim Won Suk) broadcast on Feb. 20th, Cha Soo Hyun (played by Kim Hye Soo) thought back to how she had been kidnapped by the murderer and made a testimony to detective Lee jae han (played by Jo Jin Woong).
Cha Soo Hyun cried in fear and was firm in the investigation. He went towards the weapons cabinet and said, "I'm going to kill that jerk."
Meanwhile, "Signal" is about two detectives - one from the past and one from the present who communicate through walkie talkies to resolve long-time unresolved cases.
