Case Closed: The Phantom of Baker Street, known as Detective Conan: The Phantom of Baker Street in Japan, is the sixth Case Closed feature film, released in Japan on April 20, 2002. The Phantom of Baker Street is the first film in the series written by Hisashi Nozawa. This was the last of the Case Closed films done in cel animation. It was released on February 16, 2010, in America on DVD. This film brought 3.4 billion yen in the box office. The story features several characters from and references to the Sherlock Holmes series, which Detective Conan is heavily inspired by, and Jack the Ripper.

Kenji Kodama is a Japanese anime director, and storyboard artist. He is best known for being one of the main directors on the long-running anime Case Closed, as well as the City Hunter series and Lupin III Part III. Kodama is also a member of the Japanese Animation Creators Association.