This didn't work for me. Intelligent zombies, check. Short-handing the start (they're killed and turned into zombies and understand that they're zombies quick, so we can get to how this is different). I don't know, just didn't click for me. As others have said, maybe if we knew more about them before they turned (is the friend a potential megalomaniac?).
I did think the very last scene was nice, if I perceived it right (the brainy good guy zombie has to act dumb so as not to let onto zombie ex-girlfriend about his betrayal, right?).
And I really hope Alasdair was kidding about listeners sending "your little darlings" to Pseudopod.
Thanks for listening
“The face of the dead man was concealed, of course, our customs not being those of the south, where corpses are carried to the grave in open coffins, that they might – one last time before slipping into the pit – be warmed by the light of the sun.”
Jan Neruda, “Doctor Spoiler”