When Pippa's best friend goes missing on a school run no one thinks twice. Heather is pretty popular and more than a little wild. Most people think she ran away for the attention . . . Others say girls like her always get what's coming to them. Pippa's mother Abbie has never liked Heather. Or her mother Michelle a successful doctor who thinks she's too good for the school mums' group. But when Heather turns up dead everything changes. Because Pippa was the last person to see her alive . . . and now Abbie's own house of cards is about to come tumbling down.