The best-selling author will provide the screenplay for "Man in an Orange Shirt", reported Digital Spy.
The two hour-long episodes will follow the relationships of two sets of gay lovers, 60 years apart, which are linked by a painting that holds a telling secret.
Patrick Gale said, "Man in an Orange Shirt is the most exciting screen project I've worked on to date: an original drama exploring strands of gay male experience since the 1940s.
"It has been such a privilege to be given such an open brief and then allowed to run with it. I don't want to give too much away but after much experimenting, we've ended up with two hour-long films, one set in the 1940s and 50s one set in the violently contrasted present, one depicting a love story made impossible by pressures from society, one a love story nearly derailed by the long-term fall-out from the 1940s story.
Gale is known for his novels "Notes from an Exhibition" and "A Place Called Winter.