planning a murder mystery party for 200 - 300 people

I'm planning on a murder mystery party for around 200 - 300 people. I'd like it if you could call me and talk to me on the phone. I have so many questions - I really don't even know where to begin. Would I suggest the type of mystery I'd be interested in and you write it based on my suggestions?

My response:

That's not really an area that I deal in - but I do have details of some professional murder mystery party organisers.

Click here to learn more about some professional murder mystery organisers.