Silverfish

With her dad and new stepmother, Suzanne, away for the weekend, Mia Fleming finds her stepmother's secret possessions: an address book, a stash of money and a knife caked in blood. As Mia begins to unravel Suzanne's twisted double life, she unleashes a Pandora's box of horrors when she phones Daniel, a sadistic killer who believes he has a demonic fish living in his ear...