After her last skeptical jaunt into London's haunted past, Mara McDougall stumbles upon an antique store and finds the enormous medieval bed of her dreams. She buys it, despite the strange warning of a stunning but rude man who tells her, "The bed is mine, wench."
Just as she's about to leave London, she learns that a friend in the tourist business has left her a huge Scottish castle—and a catch: she must make the place into a memorial to the MacDougall clan of Scotland.
It turns out her gorgeous new bed has a catch of its own: it's haunted. Scottish knight Alexander Douglas, he of the rude warning, was cursed to spend eternity with the bed by one of the MacDougalls, and he's sworn revenge against them (and, now, maybe the McDougalls, too).