A mysterious invitation. A haunting lakeside ritual. A family reunion to die for. Thirteen years after their mother's disappearance upended their lives, Drew and her brother Isaac receive a disturbing letter – an invitation to a reunion long overdue, signed by the missing woman herself. The directions are dangerously vague. But Drew and Isaac are desperate for answers. Only one thing is for neither of them are prepared for the nightmare ahead. Deep in the mountain wilderness lies a secluded commune. A place of secrecy and solitude, the residents are highly superstitious. Each night they gather at the lake, hoping to glimpse what they believe lurks in its haunted depths. Where Drew and Isaac will soon learn that you can't always escape the monsters of your past... sometimes you must fight to survive them.