Having rejected a marriage proposal, Mel Sanderson takes a job at the Villa Lavanda on Croatia's beautiful coast. Makso, the owner, is overbearing, whilst his Japanese wife Hiroko keeps herself to herself. When Mel finds a note thrown onto her balcony - a message bearing the desperate words PLEASE. HELP. ME. - she can't just ignore it. But she is also in danger, with no idea of where to turn for help...