Everything you need to understand or teach Stranger in the House by MacDonald, Patricia J. .
A Stranger in the House by Shari Lapena is a mystery thriller centering on a married couple living in suburban upstate New York. The wife, Karen, is in a car accident one day and suffers slight amnesia from a concussion. She soon becomes a suspect in a murder that took place near the site of the car crash. The investigation uncovers many personal secrets, and Karen and Tom struggle to remain connected through the turmoil of the investigation. The novel explores themes of love, duplicity, justice, paranoia, and truth.