The spacious Victorian office space is the Bradbury Building in Los Angeles. Later in 1964 it was also used in The Outer Limits: Demon With a Glass Hand, which also starred Arlene Martel.
The film was completed in 1964, but sat on the shelf for thee years due to a lawsuit. In 1967, under the alternate title Bed Of Fire, the film played the Rialto Theater in downtown Los Angeles, on a double-bill with Suburbia Confidential.