Raúl learns of the suicide of Marcela, his high school sweetheart. The shock plunges him into the memory of that winter of 1980 in Buenos Aires. The nostalgic memory of their story revives in the present, like a forgotten love wound that never healed.
Based on the true story of one of the most notorious crimes in Argentina, the series intimately follows all those involved in the case, and those who are still seeking an answer to the question: Who killed María Marta?