Struggling actress Marin Keane is shocked when she lands a role in a major motion picture about the unsolved mystery of New Avalon, an island on sprawling Lake Faraday in Vermont. She’s even more surprised when she learns that the role requires a weeklong research trip to that very spot. A century ago, New Avalon was a commune for spiritual mediums --- until they all vanished in 1926. The only trace of them was five dresses hanging from the branches of an old oak tree in the middle of the island. Not long after arriving, Marin and her castmates --- including legendary actress Violet Wright and white-hot director Ronan Peters --- begin to realize that all is not right with New Avalon. And after a sudden health emergency leaves Marin, Ronan and the other actors stranded on the island, the disappearances begin again.