She might be the latest comic character from the Marvel stable to get her own series, but Jessica Jones is far from your usual superhero. There's no costume, no particularly noticeable special powers, and no personal desire or moral imperative to save the city, or the world. In fact Jessica (played to perfection by Krysten Ritter) is a sarcastic, grouchy, alcoholic Hell's Kitchen resident whose main concern is making enough money by doing some dodgy tasks for an attorney, so that she can buy another bottle of whisky.
She's been there, done that with the superhero thing, and it "didn't work out". So now she mooches around the city at night, taking photos of cheating spouses as a private eye (she does have her own business called Alias Investigations Ltd, but has a less than desirable customer service approach), or delivering court papers to elusive white collar criminals. Occasionally she might lift a car with her bare hands, or leap up the side of a building, but mostly, Jessica Jones remains incognito.
It's not long before audiences will discover why she's such a mess though. A supervillain named Kilgrave (played by David Tennant) is responsible, having developed a talent for controlling minds, and made Jessica his puppet. After he made her do a bunch of despicable things, she thought she'd finally freed herself and killed him. But it turns out, maybe not. When another young, beautiful athletic girl disappears and starts doing odd things, Jessica suspects Kilgrave is back.