A young woman left her family for an unspecified reason. The husband determines to find out the truth and starts following his wife. At first, he suspects that a man is involved. But gradually, he finds out more and more strange behaviors and bizarre incidents that indicate something more than a possessed love affair.

Isabelle Adjani
as Anna / Helen

Sam Neill
as Mark

Margit Carstensen
as Margit Gluckmeister

Heinz Bennent
as Heinrich

Johanna Hofer
as Heinrich's Mother

Carl Duering
as Private Detective

Shaun Lawton
as Zimmermann

Michael Hogben
as Bob

Maximilian Rüthlein
as Man with Pink Socks

Thomas Frey
as Pink Sock's Acolyte