The peculiar and macabre Addams family returns. A clan led by Morticia, devilishly devoted to her husband and children, and Gomez, an elegant and sinister father, passionately in love with his wife. His children are Wednesday, a bright and sinister teenager with a lot of ingenuity, and Pugsley, a menacing 10-year-old boy who loves any kind of evil he can find. In addition, the family is completed with the cheerful and chaotic uncle Fetido and grandmother Addams, who loves that his grandchildren enjoy their cookies in the form of bats and skulls. Of course, this time they will have to face an arch nemesis: Margaux Needler.