In a dark and eccentric mansion, lives a peculiar family with an unusual love for the macabre. Gomez and Morticia Addams, two Gothic lovers, dedicate their existence to enjoying life in their world of shadowy fantasy. However, their dystopian peace is interrupted when a greedy lawyer devises a plan to seize their fortune by manipulating a long-lost relative.
Cousin It, who has been absent for years, is claimed by the family, but he turns out to be an imposter posing as the real It with the aim of stealing the Addams' wealth. With their mischievous children, Wednesday and Pugsley, on board, they must uncover the truth and protect their legacy. In a whirlwind of comedic and macabre situations, the Addams clan confronts a superficial society that does not understand their love for the strange.
As the imposter tries to fit in, the family's peculiarities begin to clash with the expectations of the outside world, revealing in the process their true values and what it really means to be a family. Amidst dark laughs and tender moments, the story explores the importance of individuality and acceptance. In the end, the Addamses will prove that being different is not only cool but also what unites them more than ever. The quest for family identity leads to unexpected twists and, of course, to a conclusion that reaffirms their love for life beyond the conventional.