A matter without a corpse. Unfinished business

A tragedy broke out in a quiet pub: a young man named Alan Rogers burst into the hall, cried out that he had committed a murder - and then, in front of shocked visitors, he was poisoned.
Yes, but who and why did the unfortunate kill? Neither in the town nor in its environs a corpse was found. True, four people are listed as missing - maybe one of them has become a victim of Rogers? So believes the inspector Scotland Yard sent from London. However, Bife has his own opinion on this score ...
The strangest thing of the Bife - after all, everyone around is sure that this time he, who has grown up, resigned and took care of a private detachment, suffered Fiasco - he could not prove the innocence of millionaire Stuart Ferrers, accused of killing a family doctor, and then And executed for this crime under the court sentence.
But only the most retardant sergeant and his best friend Townsend know what reasons prompted Bifa to be silent that he really managed to solve the case