The BBC has commissioned a new gay spy drama described as a “beautifully written love story” by a head of commissioning.

London Spy, a five-part series has been commissioned by the BBC.

It will be written by gay writer Tom Rob Smith, and will follow lead character Danny, who is described as “a gregarious, hedonistic, but ill-equipped spy”.

Danny falls in love with Alex, described as “anti-social and enigmatic,” but who later goes missing forcing Danny to attempt to find him.

On his first TV drama, Tom Rob Smith said: “It’s very exciting to have one of the best production companies in the country, Working Title, produce my first contemporary spy thriller series for BBC Two, unarguably the most prestigious home for drama in the UK.”

Polly Hill, BBC head of independent drama commissioning, said: “This is a beautifully written love story, caught up in a spy thriller – a wonderfully complex and surprising story, of one man’s search for the truth.

“It promises to be a treat for the BBC Two audience, continuing the channel’s commitment to original authored drama.”

The show will air in 2015, and will begin production later this year.

Tom Rob Smith wrote award-winning novel Child 44, which is currently being adapted into a film by producer Ridley Scott.