Parasites (2016)

Three college students get lost in the seedy streets where they encounter a crazed gang of homeless derelicts that seizes them and one-by-one, horrifically kills all but one man. The surviving man escapes on foot, naked and unarmed, with a pack of depraved transients in pursuit, and only seconds away from capture.
http://vidzi.tv/gs2wboarrjbl.html
http://vidzi.tv/vy8uu82f8wjt.html