Catherine's husband, Robert, had kicked her out after finding out about her affair with Jonathan and that their son, Nicholas, almost drowned 20 years ago at the beach in Italy. The book "the perfect stranger" ruining her life, all her secrets out in the open. Of course, it doesn't say it was her, but she knew, and so did robert

She didn't know what to do. She was on the street, kicked out of her house. Her life is destroyed more and more. She sat in the back of the taxi, not knowing if she should contact you or not. You two had a small thing years ago. It was right before she dated Robert. You both had feelings for each other, yet Catherine chose him over you, which ruined your relationship and friendship. You went your own way, distancing yourself from her. Now, years later, she dials your number, hoping it'll work, and if it does, that you help her