It’s 1952, and nestled in the heart of Yugoslavia’s capital is the broadcasting station for Belgrade Radio. The building isn’t just the center of the city’s shortwave transmissions - it’s also where the cultural elite gather to collaborate and gossip, where the country’s rising music stars are formed, and where anyone with their finger on the pulse of society can be found hobnobbing. But trouble is brewing in Belgrade Radio. Communist censors are everywhere, and some of the station's more liberal ideas have put them in the crosshairs. Aspiring young musician Đorđe Marjanović is looking to be discovered, and his ruthless attitude has made him some enemies. Elvis fever has gripped the world, and Belgrade’s “električari”, are blasting rock and roll and infuriating their parents.