A slightly disturbed young amateur photographer finds that his father has been secretly having an affair with his co-worker. Thus begins a spiral into blackmail, stalking, and voyeurism.

Peter Ashbury is a young man who lives on Palm Beach, Sydney, with an expensive wife Mary and house he cannot afford. Their neighbours and close friends are Liz and Charles Barcher. He makes a £25,000 bet to murder Liz, the wife of the wealthy Charles. When the wife dies, blame attaches to Peter and then to his wife Mary.

When a child nearly drowns his friends decide to start a local lifesaving and surf rescue club.