A British Army doctor comes back from a war, thinking that she has PTSD only to discover that there is a more daunting malevolence at work making the life that she knew unfamiliar.

1840 and another ship crashes on the rocks of an almost deserted island in Scotland. Three sailors survive the wreck and make it to shore where the few locals take them in as they wait for the mainland boat to come for them. But the sailors' survival story has only just started as they uncover the strange past of the once vibrant island.

Detective Sherlock Holmes and Dr. John Watson join forces to investigate a murder at Buckingham Palace. They soon learn that they have only four days to solve the case, or the queen will become the next victim.