A family moves to their dream home, but the lodger they need to make ends meet soon causes friction...
Sian's behaviour is successfully destabilising the family as the intense drama continues. A pawn shop receipt stirs up trouble, and Alice's life is suddenly put in danger.
Sian's manipulations become increasingly divisive. As Jessica desperately tries to reconnect with her daughter, Nick is horrified to find himself implicated in a violent incident.
The drama builds to a deadly conclusion, as Nick and Jessica begin a frantic search for their daughter. A cliff-top climax with Sian could have fatal consequences...
