Detective Investigation Files: Season 3
Season 3 Lore Primer
Key plot threads, lore context, and character stakes you need to remember before diving into this season.
- Directly follows the overarching narrative developments of Detective Investigation Files Season 2.
- Faction dynamics and core character alliances shift under escalating external stakes.
- Crucial mysteries introduced previously reach key turning points and narrative reckonings.
- Sets up serialized story arcs that build directly toward the climactic season finale.
Episode Guide
Season 3 Progress Shield
Episode 1
Sep 1, 1997
After losing part of her memory, KO CHIT left CHEUNG TAI YUNG and started her new life alone in Canada. YUNG goes to find CHIT but in vain as she has started off to Beijing to orga
Episode 2
Sep 2, 1997
YUNG brings CHIT to the police to report the theft. However CHIT is frightened. In the third transaction, NAM CHING is arrested. She states that she works with WONG HO SANG in WAI'
Episode 3
Sep 3, 1997
YUNG questions CHIT but he is lurked. He faints and luckily he is saved by YI. When he regains his consciousness, he rushes back to Beijing where he finds the real CHIT is hospital
Episode 4
Sep 4, 1997
YUNG asks YU to send a letter to CHIT. CHUN is impressed by YUNG's love of CHIT and he goes home to stay with his wife. CHIT faints and is sent to hospital. CHUN allows YUNG to vi
Episode 5
Sep 5, 1997
As there is evidence, WA admits that the murder was done by her. CHIT and YUNG are excited. On the other hand, WANG returns and declares that all were killed by him. WA knows nothi
Episode 6
Sep 8, 1997
CHIT wants to move to Canada with MAN but at the last moment she decides to stay with YUNG. YUNG is excited. YUNG and CHIT move to a flat near to YI's house. YI is discontented wi
Episode 7
Sep 9, 1997
MEI is grievous and the case is complicated. YI looks after MEI and MEI thanks him. They mutually impress each other. KWAN does not like CHIT learning cooking from YU PIK LING. LU
Episode 8
Sep 10, 1997
A witness states that SUN jumped into the sea and killed himself. YI suspects that he killed himself as he felt guilty. However TIN does not accept YI's conclusion. YUNG and his co
Episode 9
Sep 11, 1997
YI recalls that he found some salty smell on MEI's hair when they were on Larnma Island. POON CHI TO, a psychiatrist, warns that MEI is a dangerous person on the brink of explosion
Episode 10
Sep 12, 1997
CHIT visits TO. TO is impressed by her and asks her to take a part-?time job. CHIT becomes a part-time journalist and she interviews the winners of a cooking competition. KWAN is
Episode 11
Sep 15, 1997
TIN goes to the inn which they always visited in the past on the outlying island. There he finds KWAN. However it is too late and there is no ferry service. Thus they spend a night
Episode 12
Sep 16, 1997
CHIT checks MUI's telephone in her company and discovers her trick on her phone. CBIT is aware that MUI is involved in the case. She also remembers the wooden box of MUI. CHIT and
Episode 13
Sep 17, 1997
CHIU's corpse is found along a river. On seeing the decaying corpse, LUNG feels sick. KWAN misinterprets HUNG's intention, thinking that he invites her to see an opera together. I
Episode 14
Sep 18, 1997
LAM is dead and her corpse is terrible. Her neighbor SA reports that before LAM died, there was loud music. YI is careless and breaks SA's Mickey mouse glass. YUNG and YI check th
Episode 15
Sep 19, 1997
YUNG discloses TUNG's trick of misidentifying the corpse. TUNG tells the truth. In fact TUNG and CHIU went to Macau first. Then they asked LIM and LAM to discuss the matter. Howev
Episode 16
Sep 22, 1997
FAY and HAY are old friends. HAY's husband owns a magazine. CHIT is aware of the friendship between FAY and HAY. One day FAY and HAY go out with HAY's son BOR. BOR is knocked down
Episode 17
Sep 23, 1997
YI, SA and LUNG visit MONG but MONG cannot recall anything. CHIT introduces TUNG to help KWAN in her shop. TIN's friend KIN comes to avenge TIN's being hurt. KWAN calls the police
Episode 18
Sep 24, 1997
TIN remembers that the curtains were hanging on the window when the murder happened. Believing that MONG has lied, YI and YUNG go to question him. MONG does not admit telling lies
Episode 19
Sep 25, 1997
SA breaks up with her boyfriend. YI knows that he has a chance. As ON is mentally ill, the government does not accuse him. HUNG is unhappy. Later ON falls down from the roof of the
Episode 20
Sep 26, 1997
YUNG and CHIT have a quarrel. CHIT and her colleagues go to Mr. CHUNG's house to have dinner. HAY is not there. YUNG comes to take her. They forget each other. YUNG worries as FAY
Episode 21
Sep 29, 1997
After investigation, it is certain that the dead man is FAY, YUNG's brother, YUNG is in deep grief, He works round the clock, hoping he can find the killer, He recalls that FAY has
Episode 22
Sep 30, 1997
From the video tape, they realize that FAY and HAY did not commit adultery. HAY was raped by WAI before her marriage and WAI continued to blackmail her, FAY went to argue with WAI
Episode 23
Oct 1, 1997
YUNG, HOI and HAY are hurt and sent to hospital, WAI is killed in the explosion. Ignoring CHIT'S warning, YUNG questions HOI, HOI admits that he had falsely blamed HAY and FAY, so
Episode 24
Oct 2, 1997
YUNG and CHIT see YAU and her father off at the airport. YUNG stills feels guilty for FAY's death. CHIT asks YUNG about MAN and YUNG tries to hide the fact. CHIT has no way to find
Episode 25
Oct 3, 1997
YUN is kidnapped. YEE and CHEUNG worry. They ask WAI to lend them money so as to save YUN but they are refused. CHIT and KWAN are robbed. Luckily TIN arrives and saves them. Howeve
Episode 26
Oct 6, 1997
CHEUNG secretly hides the money in his house as instructed by the kidnapper. The police has a photograph of the kidnapper and from his birthmark, his identity is disclosed. A flat
Episode 27
Oct 7, 1997
YI studies the video tape and discovers that a mysterious man was there. He looks like CHEUNG. When he asks CHEUNG, CHEUNG tries to escape. CHEUNG admits that he did all the things
Episode 28
Oct 8, 1997
YUNG and CHIT decide to divorce. YUNG stays in YI's house and CHIT goes to Canada. LUNG finds that SA's boss YIP is her father. She goes to visit YIP but YIP suspects her. KWAN dr
Episode 29
Oct 9, 1997
TUNG seeks help from LONG, who is a doctor. YI is cured by him. LUNG discloses her love beside YI and YI pretends that he is still unconscious. KING's corpse in found in the water
Episode 30
Oct 10, 1997
YAT escapes. From HUNG's father KAU, they find that HUNG is TIN's daughter. TIN changes his bill and leaves his fortune to TUNG. CHIT returns and meets YUNG. However they have no
Episode 31
Oct 13, 1997
TUNG takes refuge in a deserted house. YUNG and YI try to trap the killer. LONG comes to kill TUNG but in vain. LONG runs away and catches TIN. TIN is killed by LONG. LONG is arre
Episode 32
Oct 14, 1997
As YUNG and CHIT try to stay away from each other, the others cannot bridge them. CHIT knows LUNG's feeling, she invites LUNG to stay in her house. YUNG meets TUNG and YUNG finally
Episode 33
Oct 15, 1997
YIP and LUNG are kidnapped by TAI and KIN. With the clues left by LUNG, YI knows that they are locked up in Sai Kung. TAI and KIN run away as they find YUNG and YI finding their re
Episode 34
Oct 16, 1997
Someone sees YIP at Sheung Chi Cliff. YIP's stick and scarf are found there. As KEI also disappeared at the cliff. It is suspected that YIP has committed suicide as he felt guilty.
Episode 35
Oct 17, 1997
YIP was strangled to death. LUNG is depressed. SA finds that LUNG and YIP have been acting strangely. TIN learns where KIN is from HELEN. However KIN escapes. HUNG suspects TIN hav
Episode 36
Oct 20, 1997
To satisfy SA, LUNG requests YI to be her foster brother. YI has to accept the request reluctantly. YUNG discovers that ERICA was also YIU's lover. He suspects her. CHIT is jealous
Episode 37
Oct 21, 1997
LUNG's heart is broken as YI asks SING to release SA first. YI and YUNG grasp the opportunity to catch SING. SING admits that he killed YIP as he thought that his father KEI had be
Episode 38
Oct 22, 1997
YUNG blames himself as he thinks that TUNG killed herself for him. CHIT receives a call from the traveling agent and learns that TUNG had reserved a seat in a flight. It seems that
Episode 39
Oct 23, 1997
YUNG comes across KIN but KIN manages to run away. KIN's dead body is found later. He was killed by a broken bottle. CHIT suspects YUNG and tells KWAN her idea. KWAN questions YUNG
Episode 40
Oct 24, 1997
FUNG leads the others to the hospital. They find HUNG having caught CHIT. YUNG saves CHIT but CHIT is hurt. CHIT is in a comatose. HUNG tells all crimes he did. He took away YIU's