At a family party, Alice is feeling left out and disgruntled.

So when a strange girl turns up and pretends to be an old friend, she plays along as a joke.

But soon the newcomer - the other Alice - is inveigling her way further and further into the family circle, and Alice starts to think she may have made a terrible mistake.

Who is the other Alice, and what does she want? This is an original and intriguing story about families and the secrets they can hold.