Nine months after solving the mysterious death of a classmate, Virginia Eaton and Katie McRanes are looking forward to spending their senior year together. The school year has barely started when a friend's ex-boyfriend shows up to make trouble.

And someone dies.

As the girls investigate the murder of a member of their tight knit circle, their differing suspicions about who's responsible put them at odds, jeopardizing their newly rekindled romance. It's clear someone they care about may be lying, and time is running out. Can they stop a new killer before others die?

Is She Lying? is the follow up to the highly acclaimed novel Can I Trust Her?