Amelia is a successful social media influencer who posts about traveling and food. She met Josh through mutual friends while going to college in California. Her disappearance is immediately noticed by her followers. She never goes long without posting something, but she has gone silent since that day in Rome.
The police in Italy and California are investigating, but not making much progress. A friend of Amelia contacts Harper who possesses a particular set of computer skills. Harper has no time for media influencers but becomes intrigued with Amelia's story, so she agrees to look into it. The deeper she goes, the more questions arise.
Josh is tormented. He is worried about Amelia, but also feels the pressure of the police and the world zeroing in on him. He doesn't know how many times he can claim his innocence.
The first part of this book is tormenting for the reader, too. We have no idea what happened to Amelia, either. Nothing is told from her point of view. It is tense. It is worth it, though. The remaining two thirds of the book are revelatory with the answers slowly unwinding until all is revealed.
For more info, check out the Indianapolis Public Library catalog and author's site.