A beautiful woman, Kate (Tina Grenville),is released from a sanatorium unaware that while she was away her husband John (George Lazenby) has begun an affair with her sister Marianne (Wendy Hughes). The two sisters live together in a creepy apartment block while John is away, and find themselves stalked by some mysterious strangers.

• Gemini Productions
• Seven Network
• Wendy Hughes
• Tina Grenville
• George Lazenby
• Patrick Ward
• Chantal Contouri
• Gordon McDougall
• Charles Tingwell