Doctor Joseph O'Loughlin a man who appears to have the perfect life and a successful career as a clinical psychologist. But nothing can be taken for granted, even the most flawless existence is only a loose thread away from unravelling.

• Aidan Turner
• Shaun Parkes
• Imogen Daines
• Camilla Beeput
• Anjli Mohindra
• Tara Lee
• Bobby Schofield
• Tom McKay