Claire travels to her family's remote farmhouse to be with her seriously ill grandmother, who believes she is on the verge of death. Her grandmother warns her about a banshee, a ghostly figure whose eerie cries are said to precede death. That night, Claire and her fiancé Paul encounter a series of unsettling events, including hearing the banshee's wails. Claire, initially skeptical of the tales, begins to realize that something sinister is indeed at play. The supernatural presence seems to be connected to her grandmother's impending death, casting a shadow of dread over the farmhouse.

As the night progresses, the banshee's appearances become more frequent and terrifying, affecting everyone in the household. Claire and her family members are drawn into a battle for survival as the banshee's curse begins manifesting itself more tangibly. Panic and fear escalate, with each family member experiencing their own encounters with the malevolent force. Claire struggles to understand the nature of the curse and how to break it before it claims more lives. Their only hope seems to lie in uncovering the truth behind the banshee and the old family legends, fighting against time and supernatural elements to protect their lives.