Erica and Simon Dunmore have been happily married for fifteen years. The only thing that casts a shadow over Rica's happiness is her failure to have a baby and Simon realises he would do anything to provide her with the child she so desperately craves. Then unexpectedly he brings home a beautiful baby boy whose mother has given him up for adoption and Rica cannot believe her luck - they can be a proper family at last. Little does she realise the horror that lies ahead when her husband and son go missing...