Mervyn is never allowed to forget his guilty past. The fans won't let him. This is why, twenty years later, Mervyn reluctantly finds himself at 'ConVix 15', a Science Fiction convention. It's a funny thing; it seems everywhere Mervyn's dormant career takes him, there are murders. Here's another funny thing. Mervyn, with his script editor's eye for sorting out plot-holes in stories, seems to be the only one able to solve them. If only he'd taken that job on Bergerac...