Since Amy's daughter, Ruby-May, died in a terrible accident, her family
have been beset by grief. One year later, the family decide to go on
holiday to mend their wounds. An idyllic island in Italy seems the
perfect place for them to heal and repair their relationships with one
another. But no sooner have they arrived than they discover nothing on
this remote island is quite as it seems. And with the anniversary of the
little girl's death looming, it becomes clear that at least one person
in the family is hiding a shocking secret. As things start to go rapidly
wrong, Amy begins to question whether everyone will make it home.