In "Signal" Kim Hye Soo died as a result of the explosion incident.
On the episode of tvN Friday/Saturday drama "Signal" (script Kim Eun Hee, director Kim Won Suk) broadcast on Feb. 6th, Park Hye Young (played by Lee Je Hoon) and Cha Soo Hyun (played by Kim Hye Soo) investigated the kidnapping incident of Shin Yeo Jin.
On this day, Oh Kyung Tae (played by Jung Suk Yong) who had lost his daughter in the former Hanyoung Birdge incident thought that his daughter had died because of Shin Dong Hoon. Thinkin of that, he kidnapped his daughter, Shin Yeo Jin.
Oh Kyung Tae hid Shin Yeo Jin in a freezing car and made an installation so that if the light switch turned on the car would explode. This was a very dangerous situation.
Learning about this fact, Park Hye Young saw that Cha Soo Young was going closer to the frozen car and followed him from being. In the end, Cha Soo Hyun turned on the light and the car exploded, as she died.
Netizens saw this, "Signal Kim Hye Soo dying is a shock. This is a twist in the plot. Signal Lee Je Hoon and Jo Jin Woong look nice."
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.
