British Detective

This Christmas time, things are not all fine. For there's trouble at Devlin's Department Store, and it all seems to centre on the first floor. Where strangely, one can hear a cuckoo chime...T'is the season to be jolly. And Old Tom must crack the case, before he can hang up his holly.

The sleepy Himalayan hill resort of Mussoorie is shaken by the murder of a rich British colonel. Hundreds of kilometres away in New Delhi, Chief Inspector Malcolm Priestly receives an urgent message from his friend, John Harrison. Harrison informs Priestly that he has been arrested for the murder and pleads with him to leave for Mussoorie immediately.

Movie star Mary Marvell consults with Hercule Poirot after receiving threatening letters that warn her to return her diamond, the famous "Western Star", to its rightful owner. But who does own the diamond, and is it even the genuine article?

Tommy and Tuppence Beresford wait anxiously for a letter from Russia that may contain information of international importance hidden beneath the stamp. The letter is anticipated by more than just the Beresfords, and they must fight to keep the information from getting into the wrong hands.