José has been sent by the employment agency as an extra for the taping of a New Year's Eve television special (four months in advance) in an industrial pavilion just outside Madrid, leaving his mother Dolores (an old woman unable to detach herself from a big crucifix she tore from her husband's grave) alone. He is replacing another extra who died in the wake of an accident involving a production crane during a rehearsal. Hundreds of people like him are locked in the set, replaying rehearsal after rehearsal, applauding for musical performances they do not actually see and celebrating the false arrival of the new year. José starts to fall for dinner companion Paloma (a jinxed woman) to the amusement of the rest of extras sharing the table (Antonio, Yanire, and Josua). Meanwhile major clashes of egos are unfolding backstage.
On the one hand, veteran (and ruthless) crooner Alphonso comes face to face with his bitter rival, Latin pop young sensation Adanne as Alphonso is not willing to let anyone else than him to come out at the top. Yuri, Alphonso's presumed adopted son and primary target of his cruelty, has hired an assassin (Óscar) to get rid of Alphonso. A purported fan has managed to get a vial with Adanne's semen so he can be blackmailed. On the other hand, the two co-hosts of the show and an actual disfunctional couple (Roberto and Cristina) cannot stand each other and fight over the trust of the producer Benítez, who is aware the channel is struggling to avoid its closure. Meanwhile a mobile control unit formed by Rosa and Amparo stays aloof trying to save the insane television shoot.
^"My Big Night Mi Gran Noche". World Premiere. Toronto International Film Festival. 2015. Retrieved 23 January 2016. Please note that this film was previously known as My Great Night
