Can you trust a sister who is a stranger? Ella Matthews has it all. A beautiful house, a charming husband and a precious baby daughter – her life has pretty much turned out exactly as she planned. But when Ella’s mother tragically dies, her perfect life starts to crack. Her mother had been harbouring a life-long secret. Ella has a sister – an older sister – called Colleen. Excited by the thought of no-longer being an only child, Ella can’t wait to find her. But Colleen has a whirlwind past of her own. Desperate to escape her troubles, she is ready to go to any length to start afresh. As their paths collide, someone is keeping secrets… and when Colleen mysteriously disappears without notice, Ella can’t help but question if she should have started looking for her at all…