When a four-year-old girl disappears in the woods just outside Fjällbacka, the community is horror-struck. Thirty years ago, a young girl went missing from the exact same spot, and was later discovered, murdered. Back then, two teenage girls were found guilty of the killing. Could it really be a coincidence that one of the girls - now a world-famous actress - has just returned to Fjällbacka? Detective Patrik Hedström starts investigating, with his wife, bestselling crime writer Erica Falck, by his side. But as Patrik and Erica dig deeper, the truth becomes ever murkier, because it seems that everyone in the tight-knit community is hiding something. And soon, the residents must confront the fact that they could be harbouring a murderer in their midst.