Maintenance androids using a clockwork mechanism from the 51st century that malfunction, killing their human crew and thereafter begin to stalk Madame de Pompadour through her life using a series of time windows.

The Clockwork Robots began as repair robots on board the spaceship SS Madame De Pompadour in the 51st century. Their only purpose was to fix the ship if it broke down. When the ship did break down in the Dagmar Cluster, they did not have the right parts and so they used the 50 crew members on board, using their body parts to repair the ship. The last part they needed was a brain and they believed that only a 37 year old brain (the same age of their ship) would work. They modified the ship's quantum drive to open multiple time windows to 18th century France and passed through it at various stages of Madame de Pompadour's life, attempting to find her in her 37th year.