You Belong to Me — Mary Higgins Clark

In this electrifying novel from the reigning diva of suspense, a psychopathic killer gives grisly new significance to the lyrics of a sweet old song...

When psychologist Susan Chandler uses her call-in radio show to explore the problem of lonesome women falling prey, to seductive killers, she has no way of knowing she is exposing herself to the very horror she is warning others against.

Wealthy investment adviser Regina Clausen has vanished from a luxury ocean liner. When a listener call Susan's show and offers information about the mysterious disappearance, the caller meets with a terrible fate. Susan begins to investigate, and quickly finds herself engaged in a race against time, inching closer to shocking dual discoveries: that the killer stalking women on cruise ships may be an important figure in her own life, and that she herself is marked for murder.