During a trip to visit her close pals, Sara experiences inexplicable visions and becomes the target of a sinister entity lurking within their swimming pool. As she delves into the mystery, Sara unravels a chilling truth - anyone who comes into contact with the water is thrust into imminent peril. Determined to confront this otherworldly menace, she embarks on a harrowing journey to unveil the secrets hidden within the depths and put an end to the malevolent presence threatening all in its wake.