 Christmas is near and Kate Rowan has arranged that Danny Parkin, who is very ill, gets home from hospital during the holidays. A trip to a sanatorium in Switzerland will do wonders for him and to earn money for the trip his siblings "borrows" Christmas trees from Lady Whitly s estate in order to sell them. The snobby, but very attractive Lady Whitly shows a lot of affection for PC Rowan, who is sent to investigate, and she is also involved in the local Christmas charity concert. The same concert needs a Santa Claus and a reluctant Greengrass is hired for the job. Not surprisingly he tries to make money on the deal. And speaking of Greengrass, somebody has nicked his lorry!