Spider had been broken one too many times. She decides at 17, after her boyfriend of 4 years breaks up with her, that she needs to become a new person. So she learns how to fight.
5 years later she is working for a secret agency as an assassin, it is not only her fighting skill that gets her there, though. She is able to kill someone without a second thought. She has been named 'Black Widow' or 'Spider' as a result of this. She only will kill men who she thinks shouldn't be living in the first place.
But, soon enough, even she doesn't see the mess that's coming. What has she gotten herself into? This, my friends is the average life of an assassin...