A testimonial film about events that took place over thirty years ago, on October 17, 1961, in Paris, during the Algerian war. Based primarily on interviews with those involved in the events, together with archive footage, photos and radio documents from the period, our investigation proves that almost 200 Algerians were killed (drowned, tortured) by the French police.The film asks two key questions: how could such events have taken place in the capital of a Western democracy just thirty years ago? And why have they been ignored ever since?