Signal (Original Television Soundtrack)

1. 1.I Will Forget You4:24
2. 2.Looking Back4:29
3. 3.The One Who Must Leave4:01
4. 4.Lonely Walk4:26
5. 5.Happy Person (Band Version)3:32
6. 6.The Petal3:16
7. 7.Blomming3:36
8. 8.Happy Person (Piano Version)3:33
9. 9.Looking Back (Original Television Soundtrack Version)5:10
10. 10.Long Lust Love2:17
11. 11.Irretrievable3:40
12. 12.Finding the Trail2:15
13. 13.Lonely Detective2:46
14. 14.Continuation of Time3:03
15. 15.Investigation3:10
16. 16.Detective Lee Jae Han2:32
17. 17.For Those Left Behind3:50
18. 18.The Boy Park2:33
19. 19.Conclusive Evidence3:30
20. 20.Heart Felt Desire2:55
21. 21.The Desperate Signal3:39
22. 22.New Clues2:05
23. 23.The Past Can be Changed2:22
24. 24.Mystery of Jae Han3:00
25. 25.Unstoppable Pain3:24
26. 26.The Longing Trace2:19
27. 27.Profiling2:10
28. 28.A Day In the Police Squad2:34
29. 29.Tracking2:33
30. 30.Do Not Give Up3:48
31. 31.Crime Scene2:42
32. 32.Series of Labyrinthine2:47
33. 33.The Real Criminal2:54
34. 34.The Daily Run2:00
35. 35.Unknown Alone1:59
36. 36.Long-Unsolved Case1:14
37. 37.The Truth Revealed1:55
38. 38.Chilly Breeze1:57
39. 39.The Plot2:56
40. 40.Suggestion2:26