Guthrie MacNeill, financial advisor for his clan and werewolf pack, is at his wit's end when the pack leader's mate hires a gorgeous party planner to bring holiday cheer to the castle. Guthrie's wildly attracted to Calla, except he can't reconcile the fact that his job is to save the clan's money, and hers seems to be to spend it. Calla Stewart has never had a more difficult client. The laird and lady of the castle are delightful, but the handsome Highlander holding the purse strings is quite impossible. Since she specializes in holiday magic, Calla hopes she can make the scrooge-like wolf lighten up. Then Guthrie takes on the role of Highland warrior to protect her from an unexpected threat, and the holidays take a turn for the passionate.

While working for a difficult client in the person of financial advisor Guthrie MacNeill, party planner Calla Stewart discovers the man's protective side when her life is threatened by her ex-fiancé.