So producers ask you to write an Addams Family musical. What story do you tell? The films contrasted the Addam's with "normal" criminals who wanted to harm them. The stage show introduces a fiancee and conservative in-laws. The device has fueled many comedies including You Can't Take It With You, Auntie Mame and La Cage Aux Folles. So that's your spine. But what do you do with the details?
Who are the Addams's? Are they undead? If so are they zombies, ghosts or vampires? Are they just unusually morbid mortals? How much of their BDSM leanings can you mention in a family show? If you put them onstage do you use the personalities from the comics, cartoons, TV sitcom or films?
The stage show went through multiple rewrites before and after the Broadway engagement. The squid was cut for the tour. She certainly isn't in the school version. But the song about squid molestation was in the Chicago tryout and made it to Broadway.