K-Trap is the masked marvel of drill, and his liquid lyricism—all scorn, fear and ad-libbed tales of bad behaviour—is a study in creeping threat. The balaclava-clad rapper’s troubling tales of rampant hedonism are a perfect encapsulation of drill’s exhilaratingly bleak impact in late-2010s East London: the low rumbling bass and insistent, chattering beats suggest a wired late-night landscape—an underworld of dark deeds recognisable to anyone traversing city streets after-hours. That world is thrillingly familiar to the homegrown fanbase that made him a social-media star.