Now in the Far North (i.e. Milan!), Alberto has accepted to manage a program for efficiency improvement in the Italian Post. He devotes all his time and all his energy to this noble task and neglects his wife Silvia, which of course annoys her beyond limits. Things do not fare much better in Castellabate where it is rather Maria, Matta's wife, who gets on his nerves by always blaming him for his lack of ambition. One day, due to a misunderstanding, Mattia is transferred to... Milan! And on whose doorstep does he land? Alberto's of course!

After meeting during their vacation, two young people with solitary lives suddenly come into a relationship that could benefit both of them.

Three brothers pretend they're ghost hunters to inherit from their father.

She's a divorce lawyer, single mother and perpetually at war against men, he is a couple's therapist, single and not looking, they meet and collide in a bourgeois and romantic Rome...

I Soliti Idioti return to the cinema ten years after the second film and many things have changed in the world. We will see the most beloved characters compete with the contemporary, with the same cynical and amused eye that distinguished the previous episodes. This new adventure focuses on a current and universal theme: the family.