I keep seeing these characters in my head. 

• Grown up siblings. Two older brothers, one younger sister. 
• Very close. Had to rely on each other when growing up. 
• Trained hit-men. Hit… people I guess
• Incredibly skilled and good at what they do.
• Even though they might not wish to have the life they live.
• Whenever they try to have a normal life they get drawn back in because it’s the only thing they’re really any good at.

Obviously it’s a quiet day at work today…