Titled "Unubore Deka" ("Conceited Detective"), the show is an original comedy about an unusual detective (Nagase) who has a habit of falling in love with every female suspect, and his conceit leads him to believe that they are also in love with him. When he finds evidence of their crimes, he confronts them with an arrest warrant and a marriage proposal at the same time, giving them a choice between the two. Although his actual name will apparently not be mentioned during the show, he is known to everyone as "Unubore" for his conceit.
TBS says that they are lining up big-name actresses to play the guest role of the suspect for each episode. The network also hinted that there's even a case where the guest will be a male actor.
The regular supporting cast features Toma Ikuta (25) as an actor who is Unubore's friend, Mika Nakashima (27) as Unubore's ex-girlfriend, and Toshiyuki Nishida (62) as Unubore's father. The detective frequents a bar where he and a group of acquaintances are known as the "Unubore 5," consisting of Nagase, Ikuta, Jun Kaname (29), Ken Yahagi (38 ), and Mitsugoro Bando (54).
"Unubore Deka" will air on Friday nights at 10:00pm, starting in July.
source: tokyograph
TOMAlicious Fansubs announced that they will Hard sub this drama! Many thanks!
I hope that this drama will be as comedy as My Boss My Hero, as thrilling as Majo Saiban, and as interesting as Ryusei no Kizuna!

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Updates from DramaWiki:
* Title: うぬぼれ刑事
* Title (romaji): Unubore Deka
* Also known as: Conceited Detective
* Format: Renzoku
* Genre: Comedy
* Broadcast network: TBS
* Broadcast period: 2010-Jul-09 start
* Air time: Friday 22:00
Synopsis
A 30-year-old single detective (Nagase Tomoya), who is under the illusion that he is popular with females is called 'Unubore' by friends. He is an ultra romantic and susceptible to conceitedness. He has such a strong desire to marry to the extent that he has bought an apartment for his newlywed life. He falls in love with female criminals at first sight each time. While the sheer desire to meet wraps around him, he will get proof that the female is the culprit. And so, he will thrust both the arrest warrant and marriage papers at her, proposing with the words, "If you marry me, I won’t arrest you." If that still does not work, he will hold out an engagement ring and his handcuffs. In the end, the criminal will choose to be arrested and his heart will be broken. He will cry as he puts the handcuffs on her...
Cast
* Nagase Tomoya as Unubore
* Ikuta Toma as Honjo Sadame
* Nakashima Mika as Higurashi Rie
* Arakawa Yoshiyoshi as Saeki Masaru
* Kaname Jun as Matsuoka Seishiro
* Yahagi Ken as Anai Kiichi
* Shoji Yusuke as Goro
* Komatsu Kazushige (小松和重) as Inspector Machida
* Muro Tsuyoshi as Noborito
* Ito Shuko (伊藤修子) as Officer Koyama
* Nishi Keiko (西慶子) as Officer Minami
* Bando Mitsugoro as Kurihashi Makoto
* Nishida Toshiyuki as Yozo
Guests
* Kato Ai as Kisaki Eriko (ep1)
* Aoi Yuu (ep2)
* Higuchi Kanako (ep3)
* Koizumi Kyoko
* Mita Keiko
* Toda Erika
* Nakamura Shichinosuke
Production Credits
* Screenwriter: Kudo Kankuro
* Producer: Isoyama Aki
* Directors: Kudo Kankuro, Yoshida Ken, Doi Nobuhiro
* Music: Nakanishi Kyo, Ichikawa Jun
* Music Producer: Shida Hirohide
Official site