The Dead Cat Bounce
This Old House meets Murder, She Wrote in this Sarah Graves mystery set on the coast of Maine. Jacobia Triptree, onetime financial advisor to the Mob, finds her quiet retreat shattered by the unwelcome discovery of a dead man in the Victorian pile she is in the midst of restoring. That he has an ice pick in his forehead only confirms her suspicion that the death was brought about by something other than natural causes. When her closest friend, Ellie, confesses to having done the deed, Jacobia is convinced she is lying and determines to save Ellie from herself by finding the real killer.
The victim turns out to be a local boy who'd done well enough to be featured in the pages of Fortune magazine. Ellie's ostensible reason for her uncharacteristic violence is that he bankrupted her parents. Between bouts of waterproofing the basement and replacing floor joists, Jacobia sets out to find a more believable motive and murderer.