Erin Paterson runs her grandfather's law firm in Glasgow, and is an uncompromisingly aggressive negotiator. But the success of her practice is not echoed in her personal life. Erin's father has had a stroke. She can't stand her mother. Her sister's a flake and their brother, Leland, committed suicide. She's not doing too well with her boyfriend either, whom she discovers in flagrante the day that an old school friend, Lucy Grant, is murdered. From this moment, events unravel to test Erin's resolve to the maximum. Can she hold onto her job, even onto her life, when the past slithers out of the darkness to expose a secret in the family that no one dares confront?