Levin entered the work in a college writing competition held by CBS in 1950. Despite the entry achieving only runner-up status, someone at CBS felt the script was ready for prime time, and put Levin in touch with later-legendary agent Flora Roberts, who summarily sold it to NBC, which aired it later that year in their suspense anthology series The Clock.
Intriguingly, in Levin's later stage play Interlock, a different wheelchair-bound woman serves as that work's antagonist (not its potential victim).
Levin appreciated the opportunity provided by CBS' contest (see our Footsteps page's FUN FACT), and perhaps for that reason included a reference to the network in Rosemary's Baby – it's where Rosemary worked before marrying Guy.