A teenager babysitting for a family living in a remote lakeside house is terrorised by mysterious threatening phone calls. She soon discovers the caller is ringing from inside the house and realises her and the children's lives are in danger. Horror, with Camilla Belle, Katie Cassidy and Tessa Thompson.

Far away from the site of a gruesome murder, a teenager named Jill Johnson arrives at a luxurious home for a baby-sitting job. With the children fast asleep, she settles in for what she expects to be an ordinary evening. Soon, the ringing of a phone and the frightening words of a sadistic caller turn Jill's routine experience into a night of terror.