I got this as a first ever murder mystery evening with friends. The box certainly contains everything you need and so long as you go through things beforehand, everyone and everything is well prepared.
The story is a bit slow however and although the host's booklet goes through things in detail, it's still not entirely clear what to do and when (maybe that was my fault?)...and the accompanying DVD is pretty poor. It would certainly go better if the host didn't take one of the parts and could oversee things, but that's not how it's supposed to work.
All in all we certainly had fun, but it wasn't the rip roaring success I'd hoped for. I might try another game in the future, but would use a different company's kit to see if that was any better