Annie and her friends are enjoying a lazy day by the lake when ominous dark clouds begin to form on the horizon. In the scramble to escape the storm, Annie realizes her cousin Gina has gone missing. After a fruitless search in the rain, the teens call the police for help. And as the hours tick by, Annie’s fear for Gina’s safety mounts. How could this have happened? Wasn’t anyone watching her? Didn’t anyone see? Haunted by thoughts of the horrible fate that could have befallen Gina, Annie turns to her friends for support. But as the day passes without a trace of the lost girl, nerves fray, accusations begin to fly, and disturbing information about one of their own comes to light. As the evidence mounts, Annie realizes the relationships she holds so dear are not at all what they seem. Because if a girl can’t trust her best friends…whom can she trust?