Never, ever underestimate the power of a hot LBD. Think of it as a secret weapon to bring out from your stylish armoury when you need to make a serious impact. There's no better time to turn heads and make jaws drop than at Halloween with a potent, carbon-black dress. Take a turn in one of these frocks from our top 14 edit of high-end and high-street collections. Scroll down to see the LBDs we rate.