The deduction must take place after dinner

This film (drama)Also known as謎解きはディナーのあとで，is aJapanProducerbeauty live，At2011Released in year 。The dialogue language isJapanese，Current Douban rating7.0(For reference only)。

Reiko (played by Keiko Kitagawa) is an extremely wealthy young lady, but most people only know her as an ordinary police officer. Ikayama (played by Sho Sakurai) is Reiko's loyal butler, who always protects her safety both openly and secretly. On one day, Reiko encounters a case where a woman is murdered in a house. Despite conducting a thorough investigation, she has no leads on the case, while her teammate Kazamatsuri (played by Kippei Shiina) is just a superficial playboy with no real talents other than making jokes. Frustrated, Reiko returns home and cannot help but share the information she has gathered with Ikayama. To her surprise, Ikayama claims he has deduced the entire process of the murder and knows who the culprit is, even mocking Reiko a bit. After patiently listening to his narration, Reiko realizes that the seemingly composed Ikayama is indeed a genius at deduction! Thus, after dinner every day, Ikayama accompanies Reiko on a journey of deduction...