Childhood friends Tommy and Tuppence meet in London after having served in World War I. Recently "demobed", short of money, and with no job prospects, they decide to become adventurers for hire. Soon, they are employed by
Cully is finally getting married and Tom Barnaby is anxious to keep costs down as Joyce brings in a camp wedding planner. More dramatic is the union between aristocrat Ned Fitzroy and Beth Porteous when maid of honour Marina is found skewered to a wardrob