If you haven't been to one of these, I'd highly recommend it. They are a ton of fun. You're given a character to play, you dress up for the part, and you socialize with other guests (who are also in character) to get familiar with the scenario. Then, at some point in the night, some "dies". Using clues and printed exhibits of the investigation, you try to guess who the killer is.
The website Leslie uses for these parties (she also did one a few years ago that was 1930's gangster themed) is http://www.nightofmystery.com/ and its a small fee to get the party materials and scenarios.
I took a ton (if 160 photos = one ton) of pictures. The album can be seen by clicking here.
Here are a few of them from the album / party:
