Book Review: A Stranger in the House by Shari Lapena

A Stranger in the House by Shari Lapena is a gripping psychological thriller that explores how quickly a seemingly perfect life can unravel. Tom and Karen Krupp appear to have it all: a beautiful home in upstate New York, stable careers, and a loving marriage. But everything changes one evening when Tom returns home to find the front door unlocked, dinner started, and Karen missing. 

Alarmed, he calls friends and family before finally dialing 911. Moments later, the police arrive with shocking news: Karen has been found in a serious car accident in a dangerous part of town and rushed to the hospital. Even more unsettling, she has no memory of what happened during the hours leading up to the crash. 

When Karen returns home, strange things begin to happen. Objects are moved, details don’t quite add up, and an uneasy feeling begins to grow. Soon, Karen finds herself at the center of a murder investigation, and suspicion starts to fall on both her and Tom. 

Is Karen really who she claims to be? Is Tom hiding something? As secrets emerge and trust erodes, the line between truth and deception blurs, turning both husband and wife into strangers in their own home. 

I discovered A Stranger in the House while browsing at Barnes & Noble, where someone had randomly placed a copy on a shelf. The cover immediately caught my attention, and after reading the synopsis, I knew I wanted to read it. I was even more excited to see that the book was on sale, so I bought it and took it home. Ironically, I forgot about it for a while ... until my book club selected it as our next read. As soon as I realized we would be discussing it, my excitement returned. 

From the very beginning, the book is fast-paced and filled with suspense. The story moves quickly, and I had a hard time putting it down. Shari Lapena does an excellent job of building tension and keeping the plot moving, which makes the novel an addictive read. However, I did notice some weaknesses in the writing style. Lapena frequently uses short, simple sentences, and at times repeats the same information within a single paragraph. It made me wonder whether she was under pressure from publishers to produce another book quickly. I haven’t yet read her novel The Couple Next Door, but I’m curious whether her writing style is similar in that book. 

The epilogue left me feeling conflicted and slightly agitated. The major twist at the end reminded me of Gillian Flynn’s Gone Girl, a book whose ending I disliked so much that I literally threw it across the room. While I didn’t have that extreme reaction to A Stranger in the House, the twist did diminish my overall enjoyment of the story. Up until that point, I had truly loved the book, which is why the ending left me with such mixed emotions. There is also a subtle cliffhanger that could allow Lapena to write a sequel, though I’m not entirely sure I would read it if she chose to continue the story. 

One of Lapena’s greatest strengths is her ability to create characters that feel real, complex, and emotionally engaging. Tom was one of my favorite characters, and I also liked Officer Fleming, the police officer who informs Tom about Karen’s accident. For most of the book, I liked Karen as well, until the twist at the end completely changed my perspective of her. The most irritating and unsettling character was Brigid, the Krupps’ neighbor who lives across the street. Obsessed with Tom and Karen, she constantly watches them, and as the story progresses, it becomes clear that she is deeply unhinged. 

Overall, A Stranger in the House is a suspenseful and engaging psychological thriller that will appeal to fans of mystery and domestic suspense. Despite some flaws in the writing and an ending that left me conflicted, it is still a compelling read filled with twists, secrets, and morally complex characters. If you enjoy thrillers that keep you guessing and make you question every character’s motives, this book is worth adding to your reading list. Four out of five stars is my rating for this novel.

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