‘I should have seen she was lying,’ Harvey snaps. ‘I let a complete stranger into our lives. Into our home. What was I thinking? If she’s laid a finger on Gwyneth, I’ll kill her.’

Let her in at your peril…

Harvey’s wife Gwyneth lies in a coma, the victim of a hit-and-run, which the police suspect was no accident.

With their investigation stalling, a stranger claiming to be Gwyneth’s mother appears at the hospital – a frail old lady grateful to be reunited with her daughter after twenty years.

At first she seems harmless enough - but looks can be deceptive.

Something about her story doesn't add up and as her lies begin to unravel, a chilling truth stares Harvey in the face.

The stranger at the door might not be who she claims to be.

With time against him, Harvey must uncover her true identity and what she really wants before she destroys everything - and he and Gwyneth both pay the ultimate price of letting her into their lives...