When a Stranger Calls (2006)

Jill Johnson, a teenager, goes to a lavish residence for a routine babysitting assignment in a distant enclave. The children are sleeping peacefully, and Jill expects a typical evening of solitude. However, a persistent phone call shatters the tranquility and thrusts Jill into a chilling confrontation with a sadistic caller's menacing words. Her seemingly ordinary night turns into a harrowing tale of terror.