David Hemmings credited as playing...
- Tim Brett: Either I am mad and all this isn't happening to me, or else I'm sane and it is.
- [last lines]
- Tim Brett: They think I've given up. But I *haven't* given up. As soon as I can think straight, I'll draw them out. They're somewhere.
- Tim Brett: Tell me, did she ever mention, or did you know a group or a society, called the "Stepping Stones"?
- Mrs. Gray: Hmm. I've seen the Rolling Stones on television, of course. They don't seem to need helping, but... Stepping Stones? No, I don't recollect it.
