Bayliss and Pembleton investigate the murder of a much-loved woman, only to find that she worked at a phone sex company. Meanwhile, a depressed Detective Munch tags along on Bolander's romantic dinner date after being dumped.
Still investigating the murder of Catherine Goodrich, another victim is found with the same clues and Frank is now the primary on the case. Felton is thinking about going back to his wife, Munch and Lewis consider to buy a tavern.
Howard decides to go on a sudden vacation to her hometown, but soon she has to investigate a murder of a conservationist. Meanwhile, Frank has to fill the absence of Howard as the partner of Felton to solve a case.
It's Christmas time, and Lewis gets a case in which the victim's identity is unknown due to heavy burns. Munch and Bolander deal with the death of "Santa" but nothing seems to ruin Bolander's Christmas spirit.