Welcome to Liars Anonymous, the support group for compulsive and pathological liars.

Marnie Thorpe is at Liars Anonymous for one reason, and it isn’t to make friends. Still, when beautiful, ephemeral Claire finds herself in trouble, Marnie steps in to help. Claire is being stalked, she says, so Marnie lets her crash at her house. She’s half convinced the whole thing is just another lie — until Claire turns up dead.

Claire’s murder triggers something for Marnie. Memories of another loss, another young woman taken too soon. Her gut tells her someone from their group is responsible, and that none of them are safe. But how can she uncover the truth when she’s surrounded by lies?

How can she catch a killer when everyone around her is a liar?