Watch Treble Clef

A young woman lying on a beach at sunrise. Dead. Who is she? Why did she die? Who killed her? Grace meets Matt, but was it by chance? They seem to hit it off but there is something sinister about Matt. Does Grace know something? Is that why she died? Matt wants to be someone he isn't, but cannot leave his past behind. Grace may be no better. Who is the cat and who is the mouse?