Alison's Birthday

During a friendly Ouija board game, 16 year old Alison is warned by her dad's spirit that on her 19th birthday a demon will come for her. Three years later Alison travels to her uncle n aunt's place to celebrate her 19th birthday. One night Alison dreams of a satanic ritual where a demon enters a young woman. Alison is surprised to find a miniature Stonehenge in the backyard to which the uncle replies that the earlier owner of the house was an astronomer.