Rooms centers on songwriting partners Monica Miller and Ian Wallace, who meet in Glasgow, Scotland in 1977. Monica is a middle-class Jewish girl interested in the bright lights of Broadway while Ian is a working-class rock-and-roll Catholic boy. Nevertheless, opposites attract and the two form an instant bond. Their music takes them from Glasgow to London to New York. Though Monica longs to see every room in the world, Ian is happy with four walls, a window, his music and a scotch. This rock romance explores their musical journey around the world and through time.