So, for Christmas, I signed up for a Mystery Experiences subscription. It's $30 a month, and I wasn't sure it would be worth it. I signed up 2 days too late to get the December package, so we got January's a few days ago.
My wife and I broke it open at 9pm tonight. This mystery was "The Heart of Darkness"
We worked for 4 hours, until 1 am, to get through the entire Mystery. Not every item had a use in a puzzle, but all of them were related to the mystery/story in the box. In essence, each "mystery" seems to be an interactive short story--you read/learn a few things, and then have to solve a puzzle or sleuth some clues to move on to the next part of the story.
It was very cool, the most fun my wife and I have had working cooperatively at something in a long time. And, in my opinion, totally worth the money.