Secretly responsible for his best friends fatal fall, a selfish alcoholic, on the verge of relapse, must return to his hometown to help save his dead friends wife from her own self-destruction, or forever be imprisoned by his tormenting thoughts.

This could be a good story! I believe its a bit to long though (not the story, but the logline :). You have 40 words. Try to cut it down to 25-30 words. Is it possible to find an Antagonist in this (that might be himself?). Maybe its possible to invent an antagonist inform of the ghost of his dead friend (representing his tormenting thoughts) or something?

Without knowing your story I give it a try. I also changed best friend to friend, since we can assume that it might be the only friend.

“Responsible for his friend’s death, a selfish alcoholic on the verge of relapse, must return to his hometown to help save the mourning widow from self-destruction, or forever be imprisoned by a tormenting past”

I did’t make it under 30 words, but you get the picture.