I'm really no expert but since we're on the same quest, let me share with you what I've found so far.
>Characters
The Myers-Briggs Type Indicator can help you create plausible personalities. You will learn what behaviours, good and bad, are usually seen togheter in an individual.
Enneagrams also seem interesting. It describes 9 types of personalities and shows possible transition from one to another for your character developement. Each has a healthy and an unhealthy side, so you can make a character progress or regress. I find the unhealthy side most important. I like anti-heroes like Dr House the brilliant asshole, Dexter the "moral" murderer, Walter White the resourceful drug dealer... flaws are what make them relatable.
>Story
Joseph Campbell's "hero's journey" seems to be the gold standard for story telling. A lot of popular movies have been based on this. You can find many analysis around the web.
The Beat Sheet is also holywoods cheat sheet for many scenarists. You can even find guides telling you how many minutes or pages each sections of the 3 acts should last.
Those are all blueprint to help you get started. But like hairy Mario said, the important thing is to find a way to surprise the audience. If you follow the blueprint too much, you fall into cliché and if you try too hard to break the mold you risk getting a 4th wall breaking deus ex machina.
If you discover other character/story cookbooks, I'd like to know.