One By One by Ruth Ware is a gripping murder puzzle with the classic Agatha Christie set-up of a group of clashing characters trapped together in an isolated setting, and one of them is a killer.
The setting is a vacation chalet high up in the snowy French Alps. Eight team members from a popular social media app company are at the chalet for a retreat. Tensions flare over a surprise offer to sell the company's app property. Some people there will make a lot of money from the offer. Some will instead just lose their jobs.
When a sudden avalanche slams into the chalet, everyone is trapped inside, cut off from outside help. Then the deaths begin to occur, one by one.
The plot unfolds in alternating first person chapters as seen from the viewpoints of two main characters: Erin, a hostess employed at the chalet, and Liz, a low level personal assistant with the company. As the two women narrate their thoughts, pieces of the murder puzzle slowly come together.
Careful readers may begin to pick up tell-tale clues and spot the killer before the he/she is unmasked. One complaint with the plot is the withholding of key information by the author, and some readers may feel misled on that account.
Nonetheless, One By One is an addictive read with a nail biting climax and Ruth Ware fans should be well entertained by the book.