Behind ‘Outlander,’ on Starz, True Hearts in the Highlands

Sometimes it’s hard to tell where the real-life love story between Ronald D. Moore and Terry Dresbach begins and the fictional one they depict on “Outlander” ends.

Mr. Moore, the executive producer on the Starz series about a 1940s British nurse who is transported to 18th-century Scotland, met Ms. Dresbach, the show’s costume designer, in 2003, while working together on the HBO drama “Carnivàle.” After a long production meeting in a fluorescent-lit room, Mr. Moore confessed his feelings to Ms. Dresbach.