Three unlikely friends take control of their office and learn there is nothing they can’t do, even in a man’s world. 9 to 5 The Musical, with music and lyrics by Dolly Parton and book by Patricia Resnick, is based on the seminal 1980 hit movie. Set in the late 1970s, this hilarious story of friendship and revenge in the Rolodex era is outrageous, thought-provoking and even a little romantic.