When a nun’s cursed secret resurfaces on Emma’s 21st birthday, a lake-house reunion turns deadly. A masked cult and dark prophecy force Emma and her friends to face possession, betrayal, and a midnight ritual that could raise ancient evil.

During a small get-together with her close friends for her birthday, Jane finds a seriously injured stranger on her doorstep begging for help. She decides to help him and in doing so, lure the two killers after him to her country home.