A beacon of light... Undercover DEA agent Alex Brennan doesn't believe in the paranormal, despite the exhausting nightmares that reveal things he shouldn't know. When sleep deprivation causes him to make a horrible mistake on the job, he is driven to find answers. Dreams guide him to a lighthouse in Three Churches, Maine, where he finds an inexplicable and comforting familiarity in the arms of the lighthouse's beautiful keeper, Pru Maddox. A whisper...