When Peter finds out that his blue furniture is being painted pink for his new baby sister, he takes the last unpainted item, a chair, and runs away.

Rosa is excited when her new cousin, Benji, is born, but when Grandma wants to remove a beloved armchair, Rosa puts her foot down and insists that the chair, just like Benji, is a member of the family.

Hungry for a snack, Mrs. Piccolo's easy chair follows her to the grocery store, swallowing up several people as it goes.

After having to sit in the legendary Bad Luck Chair at school, nine-year-old Addy is determined to break its curse, but first she and her friends have to figure out the puzzling directions written by one of the chair's earlier victims.