Sophie must deal with the presence of her worst rival, her sister Anaïs, who has arrived in Sherbrooke for a few days. Mehdi wants to broach the subject of parenthood with Sophie. After a drunken evening, Marie-Ève and Pier-Luc try to find out if they slept together.

While Marie-Ève tries to make people forget her mistake by being extra rigorous with the café paperwork, her father, an irresponsible man, tries to make her drop everything to party! On the side of Mehdi and Sophie, the atmosphere is icy. He has a long way to go to make him forget that he accepted his sister's money.