Four friends (two couples) play a game of truth on the evening after one of them, Ernesto, is mistakenly told by a doctor he has only three months to live. Ernesto's a sad sack, living with Lea at his parents', about to lose a job he got through his best friend, Alberto. Ernesto is also hopelessly in love with Alberto's fiancée, Susana - who, for her part, has gotten Lea a job ...