I love to have dinner parties, and have always wanted to do a murder mystery dinner party.
I went looking and unfortunately our library system doesn't have a book on how to host such a party. It seems that there is not a readily available book, and most of the products sold are kits with a ready made script, props, and accessories provided. Buying a kit is probably the easiest thing to do, but Susan Haley-Zemanek had a good article on her blog [2], detailing how to write and create your own murder mystery! Another article by Donna Pilato on About.com [3]gave tips [4] on hosting the party. Don't know when I'll get the time, but it sounds like a fun project!
Links:
[1] http://hcpl.net/users/clara-maynard
[2] http://knol.google.com/k/susan-haley-zemanek/how-to-write-and-host-your-own-large/3axvnzvjym41u/1#
[3] http://www.about.com/
[4] http://entertaining.about.com/cs/dinnerparties/a/murdermystery.htm
[5] http://hcpl.net/category/tags/murder-mystery-dinner
[6] http://hcpl.net/category/tags/parties
[7] http://hcpl.net/category/topical/website