21 Beacon Street

Set in late-1950s Boston, 21 Beacon Street follows private investigator Dennis Chase as he tackles fast-moving cases involving theft, fraud, and violent crime. Working from his Beacon Street office, Chase relies on sharp instincts and careful legwork, aided by Lola and a small circle of specialists. Each half-hour story blends street-level danger with practical detective work, building toward a clear solution that can be turned over to the police.

21 Beacon Street is a compact, black-and-white detective series centered on Dennis Chase, a private investigator operating out of an office at a prominent Boston address. Chase takes on a wide range of assignments, from missing persons and suspicious accidents to elaborate cons and robberies that spill into more serious territory. He rarely works alone: Lola supports the investigations with contacts and quick thinking, while a young law-school graduate helps sort motives and legal angles, and a scientifically minded expert lends technical insight when languages, dialects, or forensic details complicate the trail. The cases move briskly, emphasizing observation, interviews, and smart deductions rather than spectacle. Once Chase assembles the facts and identifies the culprit, he makes sure the evidence is ready to be handed to law enforcement, keeping the focus on solving the mystery and closing the case.