When newly promoted DI Anna Vaughan is called to a case in remote Knapdale, on the Argyll coast, she welcomes the chance to escape her life in Glasgow - more specifically the mother-in-law from hell…

Ellen McIver, Baldrishaig’s local busybody, has been found dead. Run over — repeatedly — by a tractor belonging to local farmer Glen Cameron. The most likely culprit is Old Wullie, Cameron’s elderly father, who, despite his dementia, still likes to drive the tractor about the lanes. But once at the crime scene Anna can tell something sinister is afoot… this was no accident. Whoever drove that tractor did so with murder in mind.

With the help of local DC Jo McLean, Anna leads her first murder case as a DI. She soon finds that all is not as it should be in this corner of the Scottish Highlands. The locals have been living under a cloud of fear for months, and as Anna starts to uncover secrets buried for years, she is in a race against time to find a murderer hiding in plain sight.