South Korea · Netflix

Signal

Signal is a MUST-WATCH on Netflix, BollyMeter 9.0/10. A present-day cold-case detective begins receiving transmissions from a detective in 1989 via a mysterious walkie-talkie - together they work to prevent murders that already happened.

Renewal: Season 2 confirmed and in post-production; targeting 2026 release for tvN's 20th anniversary. Original cast returning. (MyDramaList News)

Updated 8 June 2026