Newly married but bored Tommy and Tuppence take over a defunct detective agency.
Lois Hargreaves fears for her life. Tommy and Tuppence fail to arrive before death visits.
After a businessman is killed, the Beresfords try to prove that the accused is innocent.
A woman's inherited house appears haunted, but Tommy and Tuppence try to prove otherwise.
Tuppence and Tommy attend a masked ball and find a partygoer dying from a knife wound.
The new ambassador confides to the Beresfords that his boots were taken on his voyage.
The Beresfords investigate the murder of Gilda Glenn, but everyone involved has an alibi.
Monty Jones hires the Beresfords to help him win a bet so that Una Drake will marry him.
Gabriel Stavansson asks Tommy and Tuppence to find his missing fiancée.
Scotland Yard recruits the Beresfords to infiltrate an exclusive gambling club.
