A gripping novel of domestic suspense - Shelby Sloan, a successful Philadelphia businesswoman in her early forties, has one child, a daughter whom she raised on her own.  She gives her daughter, Chloe, and son-in-law, Rob, a Caribbean cruise as a gift, while she takes the opportunity to mind her four-year-old grandson. But life becomes a nightmare when Rob calls to tell her that Chloe has disappeared overboard. The police decide it was an accident, but Shelby refuses to accept the official verdict . . .