Revenge

Marie had her husband whom, she loved deeply killed. They killed him right in front of her eyes. Right then and there, right after his death she makes a death threat to whom killed him and allowed those guys to kill her husband. When she manages to get on the good side of the people, the king has to let her into his life. She didn't expect him to be friendly, even worse have a good side. She doesn't let that get to her, and manages to kill the other two men who killed her husband. This makes the monarch uneasy, people start saying their is a traitor in the house. Will they discover it's her? Worse will they discover she wants to kill the king? Will she be able too since she is starting to feel something towards him, will she complete her death threat?