A few months have passed since the last game. Adriana left Oscar and now he lives with Gaby...and Mica. Valentin came out of the closet and is trying to be happy in this new stage of his life. Barbara and Leo were stripped of their belongings by Aurelia's lawsuit but they adopted Carmen and now have a "throuple."

Adriana blames Siena for everything that has happened since they met. Siena introduces her to Astrid, and they both convince her this is her chance to live with total freedom. Gloria, Barbara´s mother, appears uninvited at the footstep of Barbara´s house. Valentín tries to come out of the closet to his mother, while Gaby and Oscar try to rekindle their former spark.

Adriana attends her first game with Siena and Astrid. Thanks to Guillermo, a super-hot teacher and Siena, she is initiated into sex between more than two people. Valentin cannot convince his mom to let him tell his father the truth. Barbara can´t stand her mother being in her house and Gaby notices that Oscar has no interest in what is about to happen to them as a couple.

After winning the stripping contest, Leo is convinced that his true calling is to be a dancer. Valentin tries to come out to his father, but his mother interrupts by telling her husband that Gaby is pregnant with her son´s child. Astrid prepares a game of keys in her house to help Siena "get over" Adriana. However, nothing will go as planned.

In this new game of keys, experiences will go all over the place. Some will find love, others disappointment. One will find financial backing for his wife's booming new project; while others, toyed by the decisions of those capricious keys will end up being paired with the people they hate the most. If that wasn't enough, coming home from the key game, Gaby will find Mica making out and drinking beer with a till then unknown "boyfriend."

Adriana and Barbara successfully pass the exam of their first bachelorette party. Meanwhile, Amelia has organized a gender reveal party for Gaby's baby in order to grow her husband's delusion that all is well in the Lombardo household. She has gone to the extreme as to ask Adriana and Oscar to pretend they are still together and that Valentín and Gaby are the happy couple expecting. All the ingredients are set for an EXPLOSIVE PARTY.

Adriana does almost the impossible to get closer to Mica, while romancing Guillermo and breaking Siena's heart. Astrid calls Venecia, Siena's sister begging her to come rescue her sister who is "sick" with love. Valentín starts seeing what his father´s rage can do. Gaby and Oscar see no future together. Barbara finally accepts to marry Leo.

Everyone travels to the beach to celebrate Barbara and Leo's wedding. Everything that happens there will leave questions open for a long time: Does Adriana really prefers her new life? Is Oscar going to be a dad for Gaby´s baby? Will Valentín finally find love? As Venecia, her sister joins her; will Siena finally get over Adriana? Will Gloria be satisfied with “this” kind of wedding?