The Opposite of Murder

The perfect alibi. The perfect motive. The perfect lie?

Jemma Stelling walks into a police station and confesses—not to a murder she's committed, but to the one she's terrified she might. Jemma can't stop herself from thinking about murdering her stepmother, Marianne Upton. The only way to stop herself might be to confess before she snaps and does the unthinkable.

But while Jemma is still giving her statement, a call comes in: Marianne has just been found stabbed to death, killed in exactly t...