A couple, Tobias and Ebba, is renovating an old house on an island. They have lost their child, and moved to the island. Years ago a family, sans one child, Ebba, disappeared from that place never to be seen again. During the renovation they find old blood. There is an attempt of arson. The police is looking into this. Erica is looking into the family that disappeared. A lot of strange things are happening, and both the police and Erica investigate what is happening and what has happened. The boys from the old boarding school on the island are interviewed, and this all becomes very complex.

It is a nice addition to the series. I like it when Erica is working on a case instead of being at home complaining how hard it is to be a mother. We get it. It's hard. We just don't need to read about it in crime books.