Nightmare Detective 2 (悪夢探偵2, Akumu Tantei 2) is a Japanese horror film, released in December 20, 2008, directed by Shinya Tsukamoto.

Still haunted by his unwanted abilities, which allows him to enter other people's dreams, and memories of his mother dying when he was a child, Kyoichi Kagenuma (Ryuhei Matsuda) contemplates suicide while slowly drowns in his world of misery.

One big hurdle for viewers to overcome is the fact that this film is jam-packed with ambiguity from start to finish but I urge you not to be driven to frustration.

[3] Rowthree.com gave the film 4 out of a possible 5 and also commented that he would embrace a third movie, writing, "I for one truly hope that Tsukamoto and Matsuda will return one final time and wrap the story up in a trilogy.

I am sure we will be left with as many questions as answers when everything is done but with a character so compelling and Tsukamoto's unique vision into dreams I for one welcome the challenge of revisiting the Nightmare Detective again.