How do you know who to trust... ...when you don't even know who you are? You are outside your front door. There are strangers in your house.
Then you realise. You can't remember your name. She arrived at the train station after a difficult week at work.
Her bag had been stolen, and with it, her identity. Her whole life was in there - passport, wallet, house key. When she tried to report the theft, she couldn't remember her own name.
All she knew was her own address. Now she's outside Tony and Laura's front door. She says she lives in their home.
They say they have never met her before. One of them is lying.