A secretive, lonely hitman is asked to perform one last hit when he decides to quit after falling in love with a successful attorney. When the target turns out to be his intended, he must bring all of his skills to bear against everything the mob can throw at him.
Shorten the intro, something like “agreeing to one last job a hitman is given a contract to kill the woman he love…” Even that is a little long. Action films need to get to the action.
Describe his aim, not how good he is.
“He must kill the mob boss while keeping his former life secret”.
I hope this helps.
I think it can be shortened into one sentence by starting with the hook which is that the hit man is hired to kill the girl he’s fallen in love with. And I would leave out “one last job” and his plans to quit. The reader can find those details when they read the script.
After falling in love with a brilliant attorney, a hit man vows to retire but the mob boss won’t let him until he performs one more job: murder the attorney. Now he must fight to save her life — and his. (40 words).
Although the obvious implication is that his own life is in jeopardy so maybe “– and his” is superfluous and can be dropped which reduces the word count to 38.
Best to decide whether falling in love is the inciting incident in which case this is a love story set in a crime world. Or been given his lover as a target in which case this is a crime or crime/thriller.
Accordingly the inciting incident of choice needs to be put forward and as the others have mentioned already cut the first sentence as it is mostly back story and unrelated to the plot at hand.
Hope this helps.