If Daredevil managed to prove anything back when it was first released, it was that the ABC stylings of Agents of SHIELD and Agent Carter were not going to define the TV side of the Marvel Cinematic Universe. Significantly darker than anything we'd seen in the Marvel Cinematic Universe so far but still managing to avoid the joyless grit of films like Man of Steel, Daredevil used it's tone to tell a fascinating long form story with one of, if not the, best antagonists in the Marvel Cinematic Universe at that time. Sure, Daredevil had issues (ones that are becoming increasingly apparent in the wake of Jessica Jones), but it created a baseline for the Netflix/Marvel Studios shows that Jessica Jones adheres to nicely.
It is the same Hell's Kitchen from Daredevil that we find ourselves in for much of Jessica Jones. We follow our titular character as she attempts to make a living for herself as a Private Eye, but Jessica is significantly more than she appears - gifted with super-strength and very limited flying abilities, she gave up her attempt at super-heroics after a prolonged encounter with a man who can control minds, Kilgrave, left her with severe PTSD.
