After 25 years of marriage, Marcos and Ana question themselves deeply on the subject of love, the nature of desire and fidelity, taking a decision that will change their lives forever.Marcos and Ana are married and live in Buenos Aires as any other typical middle-class family. During 25 years, they have been the perfect parents for their only one son Luciano, caring and helping him without worry about their own needs. But one day, an adult Luciano abandon his family home to move from Argentina to Madrid in Spain in order to study university in the foreign. The empty generated by his absence makes effect in the couple, finding themselves as strangers living in the same house with not a thing in common. After they takes a time to think, Marcos and Ana decide mutually to divorce, starting a new life by separated ways. With an uncertain future ahead, Marcos moves to a friend's home and is convinced to meet new women, while Ana enjoys her new freedom. Meeting casually once in a while, Marcos and Ana faces their memories together with their respective relationships with other people, but the promise to the new life they wanted don't be as exciting and touching as they ...