Massachusetts-born playwright Howard Warren Comstock enjoyed two notable screen successes. Born in Fall River in 1899, Comstock got his first break on Broadway in 1930, when his comedy Stepping Sisters began a successful run of 333 performances. The following season, his mystery/melodrama Doctor X, written in collaboration with Allen C. Miller, ran for 80 performances. Stepping Sisters was later sold to Fox Films, where it was produced under director Seymour Felix as a vehicle for Louise Dresser. And Doctor X was bought by Warner Bros., where it became a groundbreaking two-color Technicolor horror-thriller under director Michael Curtiz, and a great vehicle for leading man Lee Tracy. The movie was a hit in its own time and was successful enough to generate a couple of cash-in efforts, including a faux sequel from the same studio. Comstock seems not to have been active in the years following the movie's release, however, and he passed away in 1938, at the age of 38.