We've reached Part Five, and you can scroll back to find any of the previous episodes that you might have missed.
Earlier, young up-and-coming lawyer LaGuardia had rushed out of his office to help a group of women on strike at the garment factory and whose leader, Thea Almerigatti, had been arrested. Unfortunately, as a result of this last-minute need, LaGuardia had had to cancel a sort of low-key first "date" with his secretary Marie, who has long been in love with him.
Understanding, since that's who Fiorello is, but annoyed and frustrated none-the-less, Marie vents her frustration about romance to her ever-cynical co-worker Morris. Here is Joanne Shea and and Akira Fuku in the comic song, "Marie's Law" -- which includes some of lyricist Harnick's most fun plays-on-words and clever rhymes. (How can you not admire rhyming "criminal" with "women'll"...?)