Watch HDToday. A serial killer played by Jake Gyllenhaal travels through the hippest parties on a killing spree of Dalston hipsters. Gyllenhaal masters the role of unsuspecting dark-eyed psycho as he pumps iron and gums drugs preparing for his next beautifully fashionable victim. Transforming the music video into magnificently dramatic cinema, director Daniel Wolfe has captured contemporary London in a shockingly addictive modern Slasher.