With the addition of In Plain Sight, it's official...the summer cable shows like The Closer, Saving Grace, Burn Notice and Damages are so much better than anything the major networks have to offer during the "regular" season. Love the chemistry between Mary and Marshall. Love the quick quips and the realistic dialog. And the addition of a fine looking black detective with the unlikely name of Dershowitz for Mary to butt heads and crack wise with is pure gold.
I do agree that the mother and sister are best in small doses, but they do provide a nice slightly off-balance counterpoint to the thoroughly professional handle Mary has on her work life. One line describes the relationship beautifully: in replying to her n'er-do-well sister's question about why Mary won't just get rid of her defective car, she says "because, like my family, I love it a little more than I want to kill it." The people she's protecting have been getting better and better with each successive show. The most recent, David Foley, was a real hoot as an assassin's middleman.
All in all, I don't care if it's not exactly as law enforcement would do it. I'm not looking for authenticity in a summer show. I'm looking for fun, and In Plain Sight has it in spades.