Nintendo has posted an unusual and unexplained teaser video on its YouTube and social channels, for what appears to be a fresh horror project.

The teaser features grainy footage of a figure in a trenchcoat wearing a paper bag on their head, with a smiling face drawn on it.

Japanese text at the end of the video translates to “Smiling Man”, while text accompanying the video simply states “#WhoIsEmio” – “Emio” being the Japanese pronounciation of “Smiling Man”.

Emio – The Smiling Man: Famicom Detective Club Teaser – Nintendo Switch