Robert Beatty looks seriously untaxed acting wise in this but is a good lead. Dial 999 was probably a " strictly pay cheque " acting job for him. Fascinating to see such as a very young Peter Bowles in it & in a tiny blink & you'll miss him part Alan Browning. Of course there are better shows than this but for it's time it wasn't bad & certainly way better than modern stinkbombs like Sister Boniface Mysteries. Nice pleasant trip back in time.