A brother and sister who were born in Buenos Aires go back for a visit. Davie and Diana (Raphael Grosz Harvey and Cristina Rosato) get into the tango scene and take lessons. However the also decide to check on Davie's background. They have no photos of mother being pregnant with him, so suspect he may have been adopted. The initial check shows he has a birth certificate; but then they check further. They visit someone who helps families reconnect, and she explains that birth certificates can be false. He leaves a DNA sample. After they return to the United States the discover he does have a history. His mother was murdered, but his father and sister have been looking for him. He decides to go back, and because of this his adoptive parents (Gerardo Romano and Cristina Banegas) are arrested. Their father worked for Ford Motor in Argentina. The company was involved with the military government and their properties were used to house people being tortured. The father worked breaking up the union and did this by reporting union members to the military who would pick them up and they were at factory for a time being tortured and then disappeared. When Davie's birth mother was picked up she was pregnant. They never saw her again. The baby was given to the adoptive parents of Davie and Diana.
This is a work of fiction, but there was a dark period in Argentina when 20,000 people disappeared. Now the grandmothers are trying to find the children of their children who disappeared. The march daily in Plaza de Mayo. Ford was complicit in this and a couple managers were incarcerated as a result.
Davie's birth parents planned to name him Ariel. The scene where Davie is reunited with his father (Albión Vainstein) is very emotional, and just as tragic as the scene of Diana's birth parents and Davie's adoptive parents being arrested on extradition order back to Buenos Aires.
Word of warning there are some inappropriate scenes where Diana is finding herself in the tango scene.

