Matías is a Russian-language translator. Rody, an Interpol agent who requires his services to clarify a case. A series of unforeseen events envelop them in a desperate run to protect their lives.

Two sisters, Celia and Aída, lead a solitary routine that revolves around gossiping about all their neighbors. They await the arrival of Marita, Aída's daughter, who lives in Canada and is coming to take them to Toronto and care for them in their old age. A conflict arises when Ángel, the building manager, declares his love for Celia.

On their scond honeymoon, a couple travels to the beaches of the Dominican Republic to reignite their marriage

A plastic artist is discharged from a rehabilitation where she was admitted for drugs and surménage. She is going to live alone in an old family house in the mountains, where the noises and the strange things that happen test her weakened nerves. She becomes suspicious of the few inhabitants of the place, who seem to be creating a world of conspiracies against her. Fantastic events end up showing that sensitive people can look out and see a world that is not ours, at the risk of their lives.

Three stories, one building, different eras. A society that politically degrades over time, and temptations that lead its protagonists from a state of natural goodness to one of absolute evil. Three tales with characters whose lives are transformed in a space that drags them into utter darkness. And an eternal sentinel.