Don't Let Him In by Howard Linskey

Don't Let Him In follows Rebecca Cole as she returns to the eerie small town of Eriston following her father's sudden death, only to discover he was secretly investigating decades of unexplained deaths, suicides, and murders. Driven to uncover the truth, Rebecca continues her father's dangerous investigation with help from a local officer, while a menacing stalker closes in. The novel explores themes of obsession, small-town secrets, and the cost of truth. Perfect for fans of gripping psychological thrillers who enjoy atmospheric settings, dark conspiracies, and fearless female protagonists facing impossible odds.