Signal

Signal is a gripping crime thriller that seamlessly combines elements of mystery, suspense, and time travel. The story follows Park Hae Young, a young police profiler who unexpectedly discovers an old walkie-talkie that allows him to communicate with a detective from the past, Lee Jae Han. Together, they work to solve cold cases and prevent future crimes by sharing crucial information across different timelines. As they uncover shocking truths and encounter dangerous obstacles, they find themselves entangled in a web of corruption and conspiracy. With stellar performances by Lee Je Hoon, Kim Hye Soo, and Jo Jin Woong, Signal keeps viewers on the edge of their seats with its intense storytelling and compelling characters.