These two assassins are both married to each other and neither knows the other is an assassin. It comes to a head when they each receive assignments to take out the other. However the name of their target is the alias each goes by. The main target is a woman who wants the female assassin dead because she is responsible for her husbands death. She knows the man strikes fast and she also knows she will be wearing a wig and a disguise that should delay his recognition of her long enough to kill her. As it turned out he realized just in time and before he give her the lethal blow he holds back. When she wakes they both set out to get whoever set them up.
This could go many ways so your input would be valued.