I started watching the Shetland television series, based on Ann Cleeves’s books, before reading the books but found that they had changed the TV series just enough to allow the books to still surprise (or vice versa). Unfortunately, however, I accidentally read one of the later books before this one, so I knew about a key plot point going in.
Inspector Jimmy Perez takes his fiancée, Fran, home to Fair Isle to meet his parents. A storm comes in shortly after their arrival, making the island inaccessible. So, although he is supposed to be on vacation, when Angela, the scientist at the island bird research center, is found murdered, Jimmy must begin working the case by himself.
He finds that Angela, although married to the site administrator, Maurice, was quite free with her favors, especially to younger, fit men. That would seem to make Maurice a suspect, but he doesn’t appear to care. Further, Angela was not well liked, being arrogant and rude to most people. The night of her murder, she had a big fight with her stepdaughter, Poppy.
Jimmy’s team and the Fiscal finally make it over to the island, but they have only been there a short time when Jane, the cook at the research center, is also found dead. Jimmy thinks she must have found out or witnessed something.
As usual, Cleeves keeps us guessing. I thought I knew who the murderer was through most of the novel only to be wrong about that and the motive. There is a shocking event toward the end of the novel. I couldn’t judge its effect, because that was the thing I knew about.