Every season of Detective Investigation Files ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of Detective Investigation Files!

Episode 1

Episode 2

Episode 3

Episode 4

Episode 5

Episode 6

Episode 7

Episode 8

Episode 9

Episode 10

Episode 11

Episode 12

Episode 13

Episode 14

Episode 15

Episode 16

Episode 17

Episode 18

Episode 19

Episode 20

Episode 21

Episode 22

Episode 23

Episode 24

Episode 25

Episode 26

Episode 27

Episode 28

Episode 29

Episode 30

Episode 31

Episode 32

Episode 33

Episode 34

Episode 35

Episode 36

Episode 37

Episode 38

Episode 39

Episode 40

"Detective Investigation Files" revolves around the professional and meticulous investigations carried out by a group of dedicated police officers. As they delve into mysterious deaths with unclear causes, they tirelessly work towards maintaining peace and security for the people. However, their demanding job often comes at the expense of personal happiness.

Cheung Dai Yong, a brilliant and astute police officer, has a track record of solving crucial cases. His trusted colleague, Lee Chung Yee, stands by his side, and together they tackle challenging and complex cases. Amidst their work, Dai Yong encounters Ko Jit, a tenacious journalist. Despite their initial conflicts, a deepening connection blossoms between them. However, Ko Jit already has a romantic partner.

The Best Seasons of Detective Investigation Files

The Best Seasons of Detective Investigation Files

Season 2

Season 3

Season 4

Other Seasons

Season 1