Jeffrey Pemberton

Hanna notices some suspicious activity at a nearby cabin while she's kayaking by herself in a remote lake. Believing the woman and her daughter staying there might be in danger, she notifies the authorities. After the authorities find nothing wrong or unusual, they brush off Hanna. When she looks in on them, it sets off a deadly cat-and-mouse game of survival.

Molly Bachman, a young bestselling author buys the apartment of her dreams in the city. As she settles in, ready to start work on her next novel, strange sounds and bumps in the night begin to alarm her, along with the feeling of being watched and followed.