One of the best short sci fi series. Most people give up watching the series after the first 7 minutes due to all the violence, nudity, etc, but the show itself isn't all about gore and blood. The series shows great depth in human character, has romance, drama, and psychological themes. Many critics rate it a 9 out of 10.
The main character of the show is Lucy, who is the first of a new species, the Diclonius. She has vectors which resemble hands and can vibrate them at high speeds to slice objects and people in half. Also, she is able to reproduce others of her kind by spreading an infections. This provides a great danger to the Homo Sapiens. As the story progresses, it reveals more about her past and childhood.
"Elfen Lied is so bloody, but the story is very well thought out."