Summer, 1965, and the Marvell factory in Grafton is buzzing with life. Could it be because singing sensation Sandie Shaw is coming to town? Or maybe it's because even bigger events are taking place off the clock . . . There's the general manager and his mistress, Evelyn the elegant secretary carrying a hidden burden and the immigrant workers making a new life for themselves. For innocent student Cassandra her summer on the production line teaches her more than she ever imagined. As the sound of the Sixties sings out from the tannoy, the extraordinary stories behind the lives of the workers within unfold . . .