A lot of TV Shows have become popular with the main character having disability. Look at the old-fashioned Ironside, wheelchair-bound. The new Psych, with Shaun Spencer a fraudulent Psychic . Just two examples of this genre. A third is the extremely popular Monk. A Police Officer, who had a nervous breakdown after his wives murder, is also a sufferer of OCD (Obsessive Compulsive Disorder), which helps him solve his cases, as he obsess over every element and goes over every crime scene excessively. He notices unimportant details because of it and uses that to solve his case. The show does have an element of believability in that it would be more believable that someone obsessed about everything would solve difficult crimes, not an average joe. Humour is also a main point, as it's very tongue-in-cheek, and it's the character interactions between Monk and his "co-workers" that make you interested. A very good show, and worth watching.