Elliot deaton pitt series the christmas eve murder

Elliot Deaton Pitt series. It's Christmas Eve and Elliot took a trip to a nice hotel for the night. But everything is not what it seems. A man was murdered in a unrelated woman's room and the criminal is still on the run. After that a series of unrelated killings occur and none of them are related. How will Elliot solve this case with only one clue: the nail markings on bathroom doors.