Mother and daughter, separated and alone, mourn the death of their respective husband and father. After this, they begin to hear mysterious noises and enter a progressive spiral of terror and paranoia. The different ways of facing loss, anxiety, pain and lack of communication.
Fifty years have passed and Julio still hasn't managed to get over the disappearance of Miguel, the actor starring in a film they made together when they were young. In an attempt to reconstruct what happened, Julio sees some tapes he filmed while they were shooting and decides to write a farewell...
A young film director invites a friend to his home to propose him to participate in his next short film, a free adaptation of the painting: The Passage of the Styx Lagoon.