Unbekannter Anrufer was released in the year 2006。Unbekannter Anrufer is also called as When a Stranger Calls, Quando um Estranho Chama, Cuando llama un extraño, Bell Ringer, Terreur sur la ligne, Stranger Call, Cuando un extraño llama。

A young high school student babysits for a very rich family. She begins to receive strange phone calls threatening the children. When she finally realizes that it's not a joke, she calls the police, only to find that the call is coming from inside the house

Unbekannter Anrufer actors and actresses include Brian Geraghty, Camilla Belle, Clark Gregg, Derek de Lint, Escher Holloway, John Bobek, Kate Jennings Grant, Katie Cassidy, Lance Henriksen, Molly Bryant, Rosine 'Ace' Hatem, Tessa Thompson。