Leah and her three best friends get changed into their pyjamas, eat pizza, and argue about what film to watch. They laugh together, until the early hours. But the next morning, Leah blinks open her eyes and sees three empty sleeping bags. The other girls are gone. Twenty years later. In her small hometown, still-haunted Leah has never been able to shake off the rumours and whispers. How could she have slept through it all? She must know what happened.

With their parents gone and nobody left to ask, when Georgia and Oliver first come to amateur sleuth Millie Westlake for help with their daisy-shaped markings, she thinks the tattoos are a joke. A funny, if unusual, link between two strangers. In the seaside town of Whitecliff, stranger things have happened–especially to Millie herself.

Volunteering at the local nursing home is Millie Westlake’s one escape from the rumours that swirl around Whitecliff about her past. But speaking with elderly resident, Ingrid, as they play board games, Millie gets chills at her strange story about a young girl being pushed from a roof, somewhere across the valley....

I return home to our beautiful house on a chilly winter evening expecting to find my handsome husband Richard waiting for me by the fire. We’re still so in love, and he always takes care of me. He usually comes straight back from work. But tonight, our antique clock ticks on through the dark evening, with no sign of him. Then a knock at the door shatters my perfect life. A 12-year-old-girl, Alice from the village, has been found unconscious in the field behind our house. They say she was last seen getting into Richard’s car.

When a woman's body is discovered in a cathedral and hours later a young man is found hanging from a tree outside his home, Detective Lottie Parker is called in to lead the investigation. Both bodies have the same distinctive tattoo clumsily inscribed on their legs. It's clear the pair are connected, but how? The trail leads Lottie to St Angela's, a former children's home, with a dark connection to her own family history. Suddenly the case just got personal.