Missing Persons

During a visit to childhood friend Edith, retired housewife Hetty Wainthropp discovers that Edith's husband, Frank, has a son by a previous marriage. Hetty decides to turn amateur detective to trace him. When this gives her a taste for detection, Hetty decides to set up a private detective agency.

The Chelsea Murders

When a barmaid and part-time model becomes a murderer's third victim in Chelsea, the only apparent links are to a local reporter, Mary, and three art graduates financing a film with local part-time jobs.