The adaptation of Piotr Rowiecki's play about a paranormal case of possession by a Jewish ghost Dybuk premiered internationally in Toronto and was presented in the Main Competition of the 40th Gdynia Film Festival.  

The film was produced by Magnet Man film Ltd. in coproduction with Telewizja Polska, Chimney Poland, Krakowskie Biuro Festiwalowe, Israel's Transfax FilmProductions, IF Silesia Film, Lava Films and Wajda Studio.

Marcin Wrona died tragically during the 40th Gdynia Film Festival in 2015.

American sales agent ICM picked up Demon after its presentation at the CentEast Warsaw. Kino Świat released the film in Polish cinemas on 16 October 2015 with 108,868 admissions to date.