This is Part II of the "horror" short film 666 Westing Way, filmed in December 2007.
Movie synopsis: Three kids (a brother & sister and their friend) stay in a haunted house for one night. During their stay, one of them becomes mutated from a poisonous flower and starts barbarically attacking the others. They call the police to help, and they send a fake cop on the job. The next day, the mutated kid turns back to normal while another kid is mutated. They eventually realize that the flower is the cause of all their problems, and they improperly dispose of it.