I'm pretty sure it was pretty recent, at least within the 2000s. I think all the teenagers went to a party at someone's beach house. Someone was allergic to nuts, someone was a singer. There was a part where two of the teenagers went to look in the surrounding areas and they found a shed or something similar and another kid started pouring gasoline on it to set it on fire while they were in it. And then someone had a crossbow. It was supposed to be a teenage adaption of And Then There Were None, I think. thanks
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