Wealthy Peter Sterling and his younger wife Christine have an existence of little excitement so when a stranger comes into their lives, she is intrigued. An affair turns into much more and they are soon plotting to rob Peter of a precious gemstone.

• Filmco Limited
• Rychemond Film Productions
• Louis Jourdan
• Angela Punch McGregor
• Peter Cummins
• Bruce Spence
• Kerry Walker
• Diane Craig
• Warwick Comber
• June Jago