The Legend of Lake Ronkonkoma: The Lady of the Lake follows Jamie, a fresh high school graduate who wishes to enjoy her last summer home, and her 18th birthday, at the lake with her friends. Overshadowed by the one-year anniversary of her brother's drowning, her mother's mental health issues, and unexplained supernatural occurrences that haunt the once happy Schultz family, Jamie certainly will not get the summer she was hoping or expecting.