One a rainy October evening, Cecilia Wilborg - loving wife, devoted mother, tennis club regular - is waiting for her kids to finish their swimming lesson. It's been a long day. She can almost taste the crisp, cold glass of Chablis she'll pour for herself once the girls are tucked up in bed.<br/>But what Cecilia doesn't know, is that this is the last time life will feel normal. Tonight she'll be asked to drop a little boy home, a simple favour that will threaten to expose her deepest, darkest secret.