When Kelly Madison returns home from an extensive European business trip and discovers that her sister Meg has been missing for three weeks, she immediately rushes to the seaside resort town of Belvista, where Meg was last seen. The police, finding no evidence of foul play, have closed the case, but Kelly is adamant that something terrible has happened. As Kelly searches frantically for her sister, she hears disturbing rumors about several missing women, a serial killer, and a cover-up perpetrated by local business leaders. At Kelly's urging, brash Detective Luke Campbell, a specialist in crime-solving techniques, re-opens Meg's case. When Kelly helps him run down clues, the crazed killer proclaims Kelly his next victim. Without revealing his identity, he attacks anyone who defends her. As the violence escalates, town secrets emerge. While trying to save her sister, Kelly places herself squarely in harm's way. It's up to Luke and his trained officers to save Kelly while she endeavors to save herself and Meg before time runs out.