Signal · Season 1, Episode 4
Signal Season 1 Episode 4: We Found the Killer
About Signal: Detectives from the present and a detective from the past communicate via walkie-talkie to solve a long-time unsolved case.
More from Season 1
Season 1, Episode 1: You're Doomed Season 1, Episode 2: We Still Have a Chance Season 1, Episode 3: We Can Prevent the Killings Season 1, Episode 5: Changing the Past Alters the Present Season 1, Episode 6: Catch Him by All Means Season 1, Episode 7: We Must Dig Deeper Season 1, Episode 8: How Are You Alive? Season 1, Episode 9: Hongwon Dong Case Season 1, Episode 10: Someone Has to Stop the Bad Guys Season 1, Episode 11: The One Last Case Season 1, Episode 12: The Case Was Manipulated Season 1, Episode 13: The Real Assailant Season 1, Episode 14: Not Now, But Maybe in the Past Season 1, Episode 15: Is It Really You? Season 1, Episode 16: If You Don't Give Up