The old house on the shores of Devil's Lake has long enjoyed a bad reputation. Of the brave souls who risked spending the night in it, only a few remain alive. This particular house was bequeathed by an extravagant millionaire to three classmates - friends in the past and enemies in the present. There is only one condition for receiving the inheritance: to spend six nights under the roof of the old house. Just six nights - and your financial problems will be solved once and for all. It’s easy to forget that free cheese only comes in a mousetrap if the mousetrap looks like a million-dollar mansion.