La huella del crimen - Season 1 (1985)

July 21, 1958. Madrid wakes up to the news that a pawnbroker has been murdered in his shop. Soon, police finds that the victim's associate, his pregnant wife and their maid have been murdered as well in their own home across the street.

July 1, 1888. The body of a woman is discovered during a house fire, but the examination reveals that she died victim of a stabbing, not the flames. Her maid and pet dog are found drugged in another room.

May 1, 1929. A decomposing headless body is found inside an abandoned wooden box in Madrid's Atocha train station. The victim is later identified as a Barcelona businessman that vanished six months before.