Hundreds of years ago, the Addams family ancestors came from the old country and settled on a plot of land in what is now New York’s Central Park. This was, of course, long before it was a park, when it was still wilderness. The family flourished for many generations, and eventually, a huge house was built where a great Spanish oak, the Addams Family Tree, had been planted to protect the ancestral graves from such annoyances as sunlight and tourists.
As the curtain rises, all is right with the morbid, macabre world of Gomez, Morticia, Fester, Grandma, Wednesday, Pugsley and Lurch. They’ve gathered in the family graveyard, to celebrate life and death in a yearly ritual to connect with their past and ensure their future. They seem at peace with their dead ancestors, too – who emerge from their graves on this night each year to join in this celebration of continuity. But, at the end of the ritual, Fester blocks the ancestors’ return to their graves. Those unchanging Addams family values are about to be tested.
Fester enlists their help to set things right, just in case a new family secret goes terribly wrong. What’s the secret? Wednesday Addams, that irresistible bundle of malice, has grown up and found love. So what’s the problem? The young man, Lucas Beineke, is from Ohio, and his parents are coming to dinner to meet the family. Two different worlds are about to collide. Will love triumph, or will everyone go home vaguely depressed? Gomez and Morticia are understandably wary. Wednesday is their baby, even if she is eighteen. Their doubts bloom into actual terror when they eavesdrop on Wednesday who bursts into song about all things bright and beautiful as love pulls her in an entirely new, and cheerful, direction.
Gomez and Morticia wonder, “Where did we go wrong?” Wednesday begs her parents not to cancel the dinner, and asks the family to act as ‘normal’ as possible. Like any unconditionally loving family, the Addams’ promise to do their best to oblige, while, lost somewhere in Central Park, young Lucas asks his parents to resist any judgments and all catastrophic conflicts, so both families can enjoy one normal night.
In yet another part of the house, Pugsley, having witnessed Wednesday and Lucas making out, worries that he’s lost his best friend to her new, disgustingly sunny disposition. Plotting to break up the happy couple, Pugsley steals a volatile potion from Grandma’s private stash – Acrimonium – one swig of which is guaranteed to bring out the dark side in anyone who drinks it. After what is likely a less-than-normal meal, Wednesday hushes the table for Lucas’ surprise announcement. But Gomez reminds Wednesday that, before anything else happens, it’s time for the traditional Addams family game, “Full Disclosure” – during which everyone takes a sip from a sacred chalice and reveals something they’ve never told anyone. Gomez uses his Disclosure to try, again in vain, to calm Morticia. Fester announces that he’s in the throes of a most unlikely love – with the moon. When it’s Wednesday’s turn, Pugsley seizes his chance! He secretly pours the Acrimonium potion in the chalice and passes it to his sister. But his plan to awaken the dark side in Wednesday goes horribly wrong when Alice, coughing, intercepts the chalice and downs the potion instead. A whole new Alice, very dark and uninhibited, is born.