In "Signal" Lee Je Hoon and Jo Jin Woong's walkie talkies didn't coincide.
On the last episode of tvN Friday/Saturday drama "Signal" (script Kim Eun Hee, director Kim Won Suk) broadcast on Feb. 26th, Lee Je Han (played by Jo Jin Woong) and Park Hye Young (played by Lee Je Hoon) met up and Park Hye Young went to the Seon Il Mental Hospital that was spoken of.
On this day, Lee Je Han went to Seon Il Mental Hospital and found a body that was hidden in the manhole. As the walkie talkie was ringing, he answered the phone saying, "Mr. Park Hye Young, or 0.5. I'm here at Seon Il Mental Hospital that you spoke of" and answered the walkie talkie.
Then, the person who had received the walkie talkie was not the person that was shot by Park Hye Young that was shot by a gun but Park Hye young who had received the walkie talkie for the first time. Lee Jae Han was attacked by someone's wrong doing.
Meanwhile, "Signal" was about two detectives - one from the past and one from the present who communicate through walkie talkies to resolve long-time unresolved cases.
As the follow up to "Signal" there will be airing "Memory" which is a drama about a law firm lawyer who is diagnosed with Alzheimer's who is living at the height of his life. As it's expected to talk about the value of life and family values, it features Kim Ji Soo, Lee Sung Min, Park Jin Hee and Joon Ho.