Join Lulu Lewis, a retired detective with a knack for uncovering secrets, and Conrad, her extraordinary talking cat, as they take on their latest case. Hoping for a relaxing break, Lulu sets off with Conrad on her canal boat, The Lark, to the picturesque city of Bath to visit friends.

But Christmas cheer soon gives way to festive fear when the pair learn of a ruthless kidnapping plot that is plaguing parents in the area. As the kidnappers fuel panic with further demands, the pair must unravel clues faster than Conrad can charm with his witty banter if they are to stand any chance of bringing the criminals to justice in time to save the holidays...