Unknown Killer

Me and my friends got a sale for a trip in a summerhouse, but of course we were not the only ones who got the sale, 5 other guys got that sale too, and we're on the same school, but I wouldn't say that we are „friends"
There was another girl at the summerhouse who we don't know,she turned out to be really shy.
But one little mistake from the past changed all of our life's