Opposites Attract
Assassins, hitmen, bounty hunters, contract killer...these occupations are very similar, but most people would say all these jobs are the kind where you are paid to take a life. While that was true, the definition for which would be different. The same could be said when it comes to actual assassin, hitmen, bounty hunters and contract killers. Even though every killer for hire does the same kind of job, the motivations behind the killings are very different. Not only their motives, but their methods as well. Alice Rieper and George Heller, both assassins but complete opposites. Yin and yang, black and white, positive and negative. If one would ask why they chose this path in life, Alice would tell you it was for justice while George would say it was for riches. Alice is careful, methodical, silent. George is boastful, chaotic, and bombastic. During missions, Alice tries to not to kill the target quietly with no witnesses, no collateral with everyone who isn't the target awake and unharmed. George on the other hand will use anything to kill the target. It doesn't matter if he has to demolish an entire building full of people so long as he got paid.
It was only natural that these two would cross paths at some point. Maybe it was coincidence or maybe fate, either way just like their entire being seem to contrast one another, their reasons for meeting one another is again, opposites. Alice will meet George to end is careless killing, putting down another bloodthirsty psychopath. George will meet Alice to kill her and to boast that he killed the infamous Rieper, looking to be hired from very powerful people or groups. One will die, one will continue their path in life. Who will stand tall in the end? Only time will tell.