Lesley seems like a perfectly normal woman. Until you ask her to leave.

Gillian wants to do right by her elderly Aunt Myra. A safe nursing home. Daily visits. A peaceful final chapter for the woman who has been like a mother to her.

A plan that's derailed when a stranger turns up on the doorstep claiming to be Myra's long-lost niece, Lesley. She says she's here to look after Myra.

Within days, Myra's bank accounts are being drained and Lesley has taken full control of the house. And Gillian—the woman who has always been there for Myra—isn't allowed through the door.

When she demands to see her aunt, the threats begin. Smashed windows. A slashed tire. Headlights chasing her down a lonely country road.

But Gillian isn't backing off.

Suspicious that Lesley isn't who she says she is, Gillian digs into her past. And discovers a secret far more horrifying than anything she could have imagined.

Don't Let Her In is a chilling, twist-laden thriller about the people we let through the door, and what they take when we do.