Killer in the Family

Someone in your family isn't who they say they are... Aisling's two sons, Ethan and Finn, mean everything to her. Ever since becoming estranged from her own parents, though, she's always felt like a piece of her is missing. Desperate to find answers - about her family, and herself - Aisling uploads her DNA to an ancestry website, and is thrilled when it finds a match.

But instead of finding answers, she comes face to face with a detective. Aisling's DNA is a match for a recent crime scene - the latest in a string of murders by a dangerous serial killer, known as 'the bonfire killer'. And the police have three lead suspects: her father, or one of her two sons. Aisling would do anything for her family - but can she protect a killer?