AllMovie

Brought together on an internet chat group by their common interests of sun and sand, a fun loving group of beachgoers on a weekend getaway are stalked by a murderous madman in this frightful tale that finds the clear ocean waters running red with blood. When carefree Yuna receives a threatening e-mail from on the very first night of their getaway, she casually disregards the warning and heads out to the beach to enjoy the water. Her friends prompted to explore the fate of their now-missing friend when a scream rings out from nearby and a pool of fresh blood is discovered where she last stood, the others attempt to come to terms with their growing fear as one-by-one they receive the exact same menacing message. As the remaining vacationers pull together to track down the source of the e-mails before the mysterious author returns, the revelation that the murder could be related to an incident that occurred in their online chat group long ago leaves them trembling with terror, and struggling to live through the night.