I totally agree with the previous reviewer in that "Doctor Who Unbound - Deadline" is a very grown-up sort of drama and I always thought whenever I listened to this CD that the very unusual, slightly experimental play would happily fill a late-night slot on Radio 4 if only the majority of Radio 4's listeners were as well-versed in Doctor Who lore and the programme's early history as it is necessary to be in order to pick up on all the early programme references. Having said that I think it's fair to say that the Doctor Who Unbound range of audio dramas are very squarely aimed at the established adult fan of the original 1963 series and not, for example, kids who have only started watching Doctor Who since the re-launch in 2005.
In terms of entertainment value I would only rate this four stars as it is not strictly a Doctor Who adventure and it's not the sort of thing I would normally choose to listen to, but for the sheer cleverness and inventiveness of this script it has to be a 5, and I really appreciated being hijacked from the science-fictional Doctor Who universe and transported into the failing mind of the callous, aged scriptwriter (played by Sir Derek Jacobi) which is the only place in this drama's reality where the nascent germ of Doctor Who fiction has ever existed.
So it's not Doctor Who reality and it's not our reality either. Jacobi's character is facing the consequences of a selfish, obsessive and delusional life when his estranged son comes to visit. Problem is, he is losing his marbles and reality is starting to unravel for him as he becomes so obsessed with a certain science-fiction programme he was developing in 1963 that when reality intrudes and life offers him one glimmering hope of redemption his mind is too deeply addled by his internal reality of time machines, bug-eyed monsters and resurrected BBC TV executives to avoid blowing it.