Stella Ainsworth has settled for suburban peace with a pedantic husband, a dissatisfied daughter and a clutch of beloved grandchildren - who all take her presence in their lives for granted.
Then Cameron Keene, her boyfriend from her teenage years who'd left for America to become a rock icon of the Sixties, returns to England.
Much to Stella's astonishment, Cameron announces in an interview that his most famous song, which became a legendary love anthem across the world, was written about Stella, and that he has come back to find her.
What Became of You, My Love? explores the power of music to take us back to our youth, and asks if we can ever relive those giddy times when everything seemed possible.