Iolanda has barely arrived at the apartment, and Théo already wants his mother-in-law to leave. And it seems her relationship with Silvia is far from good...
The building's new residents are constantly up to no good; their mother doesn't even care, and Duda does everything she can to prove who is responsible.
A literally cheap pest control treatment in Théo's apartment leaves everyone suffering from allergic reactions. They decide to seek shelter at Joana's place.