Recommendations for adult Halloween parties???

What club or venue has a good adult Halloween party in KC???

What do you mean by "adult"? If you just want to dress up in a cute 'slutty police officer' outfit, drink, and dance your ass off, then just go to the Power & Light District.

i heard on the radio Martini corner is blocking off the street...
6 bars, dj's, costume contests....they said over 2,000 people were there last year