Dementia 13

To secure her husband's inheritance, Louise hides his sudden death from his dysfunctional family at their Irish castle. The family gathers for a grim annual ritual for a drowned daughter, but their mourning is interrupted by a mysterious killer wielding an axe. As secrets about the family's tragic past surface, Louise finds herself entangled in a deadly whodunit, trying to survive the night and uncover the murderer's identity before she becomes the next victim.