Ex-FBI Agent Brigid Quinn thinks she has a second chance at life. After too many years spent in the company of evil, she's quit the Feds and is working out what normal is meant to feel like. She's swapped serial killers, stakeouts and interrogation for a husband, friends and free time. But when you've walked in darkness for so long, can you stand the light?

When a local teenager dies in a tragic drowning accident, the community thinks Brigid might be able to help comfort the family. But when she does so, something doesn't add up. And it's no easier at home: after a bereavement in the family, Brigid has reluctantly taken in her niece to give her a break before she starts college. Brigid's ever-patient husband Carlo tells her they must go easy on Gemma-Kate, the grieving youngster. Which is fine, until she starts taking an unhealthy interest in dissecting the local wildlife.

For Brigid, death still seems to be wherever she turns. But as she herself starts to feel unwell, it's her own mortality that is the most troubling. And as she tries to get to the bottom of a series of allegedly accidental deaths and increasingly gruesome occurrences at home, she slowly realises that maybe this time, she's let the darkness inside the only place she ever felt safe. Sometimes, death is closer than you think.