SignalOverviewFifteen years apart, two driven detectives work together to crack an unsolved kidnapping case and rewrite history.First airedJanuary 22, 2016URL slugsignalGenresFantasyKrimActionMysteriumBilderPlakatBakgrunnIkonBannerSesongerSpesialer2 episoderSesong 116 episoderSkuespillere og stabRollebesetning — Lee Jae-han — Cha Soo-hyun — Park Hae-Young
