Sarah, a depressed college drop out, must uncover her family's twisted history, and her own greater purpose if she is to defeat the Salem Doll, a monstrous wooden creature that terrorises Sarah and her loved ones.

Serena, a mysterious woman with a dark secret, arrives in a coastal town where men mysteriously disappear. Local journalist Dylan falls for her, unaware of her ties to deadly sirens who lure and kill. As Dylan and his brother Connor investigate the disappearances for a story, Connor's jealousy and obsession with Serena lead him to a deadly encounter. The brothers’ quest to uncover the truth places them in a perilous clash between love, betrayal, and ancient horrors lurking beneath the sea.

One year on from the disappearance of their friend, a close-knit group of friends reunite to pay their respects at the site of her disappearance. Little realizing that their friend was actually the victim of a terrifying beast known as the Ice Demon and they're next.