The Woman in the Window
The Woman in the Window is a thriller about an agorophobic, alcoholic, peeping-tom of a woman, Anna Fox. She and her family suffered a terrible accident almost a year before the story begins, which is why she is the puddle of a human that we meet. Fox witnesses a crime at the house across the street, but when she tries to take it to the police no one will take her seriously. Because she's an agorophobic, alcoholic, peeping tom of a woman.
The storyline of The Woman in the Window is good, but its execution is poor. The storytelling leans heavily on convincing the reader in and out of trusting the narrator, which is an interesting tension for about a hundred pages, but unsurprisingly grows stale and eventually elicits eye-rolls.
I really enjoyed Finn's incorporation of old movies - one of Anna Fox's only remaining hobbies - into his storytelling. Her viewing material was a fun was to drive up tension and foreshadow events.
Unfortunately that was about the only thing that he got right writing a female character. His writing is incredibly male-gazey, which is whatever if it makes sense for the character, but his protagonist is a straight woman, so descriptions of a necklace sparkling over a lady's cleavage like a mountain climber make no sense and snap the reader out of the story every time it happens. To be fair, I think he objectifies men twice: once it's a nice butt. Once it's a teenage boy changing in a window. Neither is nearly so artful as any of Finn's description of women's bodies.
I'd say wait for the movie. The book's not worth your time.