On the death of his father, an eighteen-year old leaves school to take over the family firm in the City of London. Realising the other directors want to keep him in the dark he starts asking questions, and is soon undercover as a down-and-out in a hostel which will disappear if a company building project goes ahead.
A Commissionaire is suspected of a robbery committed by his son.
A group of very strange men, refugees and casualties of the war, rally round when one of their number is framed by a drug racketeer. Co-opting a well-known journalist to their cause, they scheme to bring the racketeer to justice in a home-made "trial" in the crypt of a ruined church.
