An ex-convict turns into an honest man for the sake of his love and works with the police to nab a dreaded gangster

The problem here is not somuch the logline, but the concept. “An ex-con turning into an honest man…” is not as much a story, as perhaps the end result. You’ll need to tell us why and how he made this transition. Doing it for the love of a lady is not enough.

We’ll need to know the obstacles- what is in his way from achieving this ultimate goal?

Is his goal to turn into an honest man, or to win over the girl? He can turn into an honest man simply by becoming one.

What’s at stake? His life? His freedom? Losing his family?

These are the elements that make up a more effective logline. Check this website for tips on writing better loglines. One tip for sure- before you spend a year of your life writing and rewriting a script, make sure the CONCEPT is strong and marketable, especially if you are writing on spec. Straight dramas- and this sounds to be one- are one of the least marketable of all the genres. Food for thought…