Freida McFadden's novel, "The Intruder," is a gripping work of psychological suspense set on a stormy night in an isolated cabin, far from any signs of life.

Casey finds herself alone, facing fierce winds, a power outage, and shaking walls, as she tries to shelter inside her home, which seems unlikely to withstand the storm for long.

In a fleeting moment, as she raises a candle in her bedroom, she sees a pale face staring at her from behind the window. Doubts begin to creep in: was what she saw real, or just an illusion created by fear and darkness?

As events escalate, Casey realizes that the danger isn't just from nature, but from that mysterious intruder lurking in the shadows, who knows more about her than they should.

The novel relies on escalating psychological tension and enclosed atmospheres, posing a terrifying question: What if the enemy isn't only outside?