LONDON — The BBC has commissioned the five-part miniseries “London Spy,” which was created by “Child 44” author Tom Rob Smith, and is being produced by Working Title Television.

Smith’s “Child 44” trilogy, which was an international bestseller, is being adapted as a feature film, produced by Ridley Scott.

“London Spy” is a contempo thriller in which an innocent, young romantic is drawn into the dangerous world of espionage.

It starts with a chance encounter between Danny, who is gregarious, hedonistic and romantic, and the anti-social, enigmatic and brilliant Alex, who works for the British intelligence services.

Just as they realize that they’re perfect for each other, Alex disappears. Danny, utterly ill-equipped to take on the complex world of British espionage, must decide whether he’s prepared to fight for the truth.

The miniseries will shoot this year and airs on BBC Two in 2015.

It is produced by Smith. The exec producers are Juliette Howell, Tim Bevan and Eric Fellner for Working Title Television, and head of independent drama commissioning, Polly Hill, for BBC Two.