As bombers fill the night skies during World War ll, cities across Europe extinguish their lights. These blackouts unwittingly create the perfect opportunity for two mysterious serial killers, one in Nazi Berlin and one in Allied London, who use the cover of darkness to stalk and kill lone women. Follow the investigations and manhunts to capture two of the World War ll's most notorious killers.

As bombers fill the night skies during World War ll, cities across Europe extinguish their lights. These blackouts unwittingly create the perfect opportunity for two mysterious serial killers, one in Nazi Berlin and one in Allied London, who use the cover of darkness to stalk and kill lone women. Follow the investigations and manhunts to capture two of the World War ll's most notorious killers.