Jacob has lost faith. When a woman who says she’s from the future appears at his door with a grave warning, Jacob must decide whether to believe her or face the consequences.

good luck!

thanks - that logline you've suggested is getting pretty close. i'd watch that movie!
i'll take another stab at it.

hey nicholasandrewhalls
Irony catches the readers attention. Not all loglines have irony, but most of the good ones do, for example .

A lawyer that can not lie (liar liar) a king that can't speak to his people (The kings speach) That is irony.

"a future where criminals are arrested before the crime occurs, a drug addicted cop struggles on the lam to prove his innocence for a murder he has not yet committed. (Minority Report) Irony.

Jacobs own work turns out to be his down fall? Irony?

Your logline should be in between 25-30 words.

Names and age are irrelevant unless they are relevant to the story.
The protag is a developer. How would you describe him, character-wise? Lonely? obsessive-compulsive? Drug addict? (like Minority Report) Something that he needs to overcome at the end of the story.

"After being warned from a woman claiming to be from the future. A obsessive developer must make the choice to heed her warning or continue his work that may bring the downfall of man"

something like that but better... Hope it helps.