Discopath

Discopath is a 2013 Canadian slasher film directed by Renaud Gauthier. The film is about Duane Lewis, a New York cook who becomes insane when hearing disco music. After murdering a woman in a club, Duane travels to Montreal where he continues his killing spree. Discopath premiered in Canada at the Fantasia Film Festival.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.