Detectives' Nocturne

Location:	Mouri Detective Agency
Victim:	Man
Cause of death:	Gunshot wound
	When Conan and the group went inside, they found Kashituka who's been taped-up. They also found the dead man holding the gun. It seems he committed suicide.

	Suicide?
Location:	Mouri Detective Agency
Victim:	Man
Cause of death:	Gunshot wound
	When Conan and the group went inside, they found Kashituka who's been taped-up. They also found the dead man holding the gun. It seems he committed suicide.

	Episode 671-674 ; (Int. Episode 723-726)
	Information
Title:	Detectives' Nocturne
Japanese title:	探偵たちの夜想曲(ノクターン) ; (Tantei-tachi no Nokutān)
Original airdate:	October 6, 2012 (The Case) ; October 13, 2012 (Kidnapping) ; October 20, 2012 (Deduction) ; October 27, 2012 (Bourbon)
Broadcast rating:	6,40% ; 8,10% ; 9,60% ; 9,80%
Manga case:	#231
Season:	21
Manga source:	Volume 76: Files 1-5 (796-800)
	Case
Cast:	Conan Edogawa ; Ran Mouri ; Kogoro Mouri ; Tooru Amuro ; Juzo Megure ; Wataru Takagi ; Masumi Sera ; Hiroshi Agasa ; Ai Haibara ; Subaru Okiya ; Vermouth ; Yoko Okino
Case solved by:	Conan Edogawa
Next Conan's Hint:	Broken cellphone (The Case) ; Listening device (Kidnapping) ; Keep the change (Deduction) ; Left-handedness (Bourbon)
	Staff
Director:	Yasuichiro Yamamoto
Organizer:	671 Umesaburo Sagawa ; 672 Umesaburo Sagawa ; 673 Masaharu Okuwaki ; 674 Masaharu Okuwaki
Storyboard:	671 Umesaburo Sagawa ; 672 Umesaburo Sagawa ; 673 Masaharu Okuwaki ; 674 Masaharu Okuwaki
Episode director:	671 Akira Yoshimura ; 672 Shigeru Yamazaki ; 673 Nobuharu Kamanaka ; 674 Minoru Tozawa
Animation director:	671 Masatomo Sudo and Seiji Muta (supervisors), Nobuyuki Iwai ; 672 Masatomo Sudo and Seiji Muta (supervisors), Akio Kawamura and Masanori Hashimoto ; 673 Kenichi Otomo ; 674 Masatomo Sudo (supervisor), Chiemi Hironaka
Character design:	Masatomo Sudo ; Seiji Muta ; Kumiko Shishido (design works)
Production cooperation:	672 BIG BANG
Voice Cast:
	Minami Takayama as Conan Edogawa ; Wakana Yamazaki as Ran Mouri ; Rikiya Koyama as Kogoro Mouri ; Chafurin as Juzo Megure ; Wataru Takagi (voice actor) as Wataru Takagi ; Kenichi Ogata as Hiroshi Agasa ; Megumi Hayashibara as Ai Haibara ; Ryotaro Okiayu as Subaru Okiya ; Tohru Furuya as Tohru Amuro ; Noriko Hidaka as Masumi Sera ; Mami Koyama as Vermouth ; Toshimitsu Oda as Announcer 1; Houko Kuwashima as Kei Kashitsuka (Serina Urakawa) ; Yuta Odagaki as Clerk ; Kozue Harashima as Announcer 2; Michiko Neya as Takayo Tegawa ; Chieko Sasai as Sakae Furuya ; Saori Higashi as Rinko Toyokita
	Music
Opening song:	Kimi no Namida ni Konna ni Koi Shiteru
Closing song:	Koi ni Koishite

Chronology
‹ The Dark Tower's Hidden Treasure	List of Episodes	Won't Forgive Even One Millimeter ›

Detectives' Nocturne (探偵たちの夜想曲(ノクターン) ,Tantei-tachi no Nokutān^?) is the 671st, 672nd, 673rd, and 674th episode of Detective Conan anime.

Cast

Characters

Gadgets

Criminal Tracking Glasses

Stun-Gun Wristwatch

Case

Situation

The Case

While Kogoro and the group are watching a news report on a recent bank robbery, Amuro stops by with sandwiches from Café Poirot after finishing his part time job for the day. After commenting on the robbery, Amuro reveals that he wants the scoop on Kogoro's newest case request after deducing from Kogoro's appearance and habits that Kogoro had a case. Kogoro gets a text from the client requesting that Kogoro switch the meeting location to Café Columbo, and Amuro goes with them after changing out of his work clothes.

At Columbo, Kogoro explains to Amuro the request was to find the locker a key belongs to. The client fails to show, so Amuro, Kogoro, Conan, and Ran go back to the Mouri Detective Agency to make sure the client didn't actually turn up there instead. When Amuro arrives at the agency, he and Conan notice someone had broken in and appeared to have intercepted the client while they were out. Stepping outside, Amuro explains his deductions to the rest of the gang and that the culprit is hiding in the restroom. Before Amuro can open the bathroom door, a gunshot rings out, and Conan rushes in to find a dead man who apparently committed suicide with a gun and a taped-up crying woman.

Kidnapping

The group escort Kei Kashitsuka back to her condo. Kei goes to tidy up her room but secretly leaves the condo with Conan following her. While Kogoro, Ran and Amuro are waiting for Kei, they start searching for listening devices as when Masumi called Ran the former's voice wasn't clearly audible.

Murder

Location:	Condo
Victim:	Man
Cause of death:	Beaten to death
Suspects:	Kei Kashitsuka
Locating the final listening device in a suitcase under the bed, Kogoro, Ran, and Amuro open it to find a man beaten to death inside it.

Later they receive an email from Kei Kashitsuka that orders them not to attempt to find her or she won't guarantee Conan's safety.

Kidnapping

Hostage:	Conan Edogawa
Suspects:	Kei Kashitsuka
Kashitsuka drugged Conan with a fruit juice laced with sleeping pills then sent a warning email to Kogoro that she will release him at dawn, unless they attempt to find her.

Ran contacted Agasa for help while Kogoro and Amuro discovered more information.

Robbery - Murder (Past)

Location:	Tohto Bank
Victim:	Kenya Shouno
Cause of death:	Gunshot wound
Suspects:	Three robbers
A few days ago, a robbery was committed at the bank where Kenya Shouno, Kei Kashitsuka's older brother, worked. Kenya himself was shot by one of the robber when he attempt to stop them. The robbers' stolen money for total of 200 million yens has yet to be found.

Deduction

Kogoro, Ran and Amuro try to unlock the PC in Kei's apartment while Subaru, Agasa and Haibara are on their way to follow Conan. Afterwards, Kogoro and the two unlock the PC. In the middle of Kei driving, Conan wakes up, having in fact tricked her into believing that he was unconscious, and tells Kei that he can help her find the woman in the group, the last of the robbers. Surprised by Conan, she asked how did he wake up, to which Conan answered that he purposely spilt the juice because there was no *pop* sound when he opened the cap, implying that is was already opened and that Kei might have put something in it before handing it to him, thus pretending to sleep. After some time of talk between him and Kei, during which he makes her promise she won't kill the last one, they went to the apartments of the three women who were in the phonebook of the man who committed suicide at Mouri's detective agency. Sera also follows Kogoro discreetly and is seen by Amuro.

Bourbon

Conan figures out who amongst the three women is the third robber.

People

Kei Kashitsuka
	Kogoro's client

Man
	Victim (gunshot)

Man
	Victim (beaten)

Kenya Shouno
	Deceased (gunshot) Bank employee

Rinko Toyokita
	27 years old Convenience store worker

Sakae Furuya
	31 years old Lottery winner

Takayo Tegawa
	29 years old Writer

Announcer #1
	Network Today announcer

Announcer #2
	Network Today announcer

Clerk
	NOMO gas station clerk

Resolution

Show spoilers »

From the evidence that Conan gathered during time at the gas station, he concluded that Kei Kashitsuka's real name is Serina Urakawa, a bank employee where the recent robbery took place. Serina isn't Kenya Shouno's younger sister but is his lover. The name Kei Kashitsuka actually belong to the man that Serina murdered at Mouri Detective Agency, using shoe rope trick to pull the trigger. Her motive is to kill the three robbers that was responsible for Kenya's death and so she tracked down his friend named Kei Kashitsuka. However she stumble across one of Kei's friend (one of the robber) and in self-defense, killed him. After planted several listening devices, Serina heard that Kei will request Kogoro to search for the rest of money's location and so she ambushed him at the agency. She used stun-gun on him, switched their belonging and used the trick described above to make it seem that she's a victim.

Conan then furthered his deduction by saying that he know that Serina will commit suicide after she murdered the third robber. Serina then accepted his condition and so he told her that the third robber's true identity is Takayo Tegawa. From the footage and information from Serina, Conan concluded that the third robber's true identity is Takayo Tegawa as both Toyokita and Furuya are right-handed (Tegawa is the only left-handed person). Tegawa's suspicious actions are also serve as an evidence, she bought beef-bowl rice to change the 10,000 yen bills number and she switched off her phone to prevent the police to find her. After the deduction Serina agreed to turn herself in but she said that one thing is wrong, she only took 2 guns from Kei Kashitsuka's hideout, alerting Conan that the third one must still in Tegawa's possession. They were later abducted by Tegawa, who used Conan as a hostage to intimidate Serina. Since Tegawa held Conan's wrist tightly, he was unable to use the stun-gun wristwatch.

Carjacking

Location:	On a street near Takayo Tegawa's house
Hostages:	Conan Edogawa and Serina Urakawa
Culprit:	Takayo Tegawa
Takayo Tegawa burst into Serina's car and took Conan as hostage to force her to drive to a place where there was no one around.

Fortunately, Subaru's car arrived at the scene just as they started driving away. According to the tracking device, Haibara figured out that Conan was inside that car. They informed Kogoro about this information, and Amuro then noticed their car running pass them on the other side of the street. He increased the speed to catch up with the trio, and crashed his own car into theirs in order to stop it. Masumi, who had been closely following him this whole time, ran her motorcycle up and knocked off the robber. After everything was over, Vermouth arrived at the scene and gave Bourbon a call, asking him/her if he/she would keep his/her promise with her. Subaru, Amuro, and Masumi all received a phone call at the same time Vermouth dialed leaving it unclear which one of the three is really Bourbon.

Manga to anime changes

Main article: List of differences between the manga and anime

Due to the fact that these four episodes were adapted from only five manga chapters, to fill in the timing, the anime version of the case was included with a few additional scenes that were not from the original manga. One of such scenes showed Subaru waiting for Agasa and Ai inside of his car in front of Agasa's house, before they started moving. He was shown secretly listening to something with a device, and immediately hid it when the two people came out. It was never explained what exactly he was listening to. Aside from this, there were also some small additional dialogues during the whole case that weren't originated from the manga.
In the manga version, right before Amuro crashed his car, Amuro told Kogoro to put on his seatbelt in the backseat. In the anime version, Kogoro was already wearing his seatbelt, so Amuro told him to stay as he is.
Color changes:
- In the manga Kei Kashitsuka's hair is brown, while in the anime it is black.
- In the manga Subaru's car is white-colored, but it is changed into red in the anime, which may be a possible reference to Shuichi Akai. (Akai means red in Japanese)
- In the manga Vermouth's cellphone is black, but it is changed into white in the anime.
- In the manga Amuro's cellphone is white, but it is changed into black in the anime.

Trivia

During the search for listening bugs, there was a phone ringtone and the song played was Kimi no Namida ni Konna ni Koi Shiteru by Natsuiro, which is also the current opening theme of the series.
This case was adapted in an animanga that was released on December 18, 2017.
Kei Kashitsuka's vehicle is a pastel blue metallic 2004 Suzuki Swift (ZC11S).