Serial: 7E  Episode Nos. 666, 667, 668, and 669.  Title: Paradise Towers

The Doctor and Melanie visit the famous Paradise Towers to use it's swimming pool, and find the place completely run down and populated by all-girl gangs, cannibalistic old ladies, and fascist caretakers.  At the same time, the machines that clean the building have turned against the residents at the behest of a creature trapped in the basement.  Can the Doctor unite the peoples of Paradise Towers against it?

starring Sylvester McCoy as the Doctor and Bonnie Langford as Melanie. Written by Stephen Wyatt, Produced by John Nathan-Turner, and Directed by Nicholas Mallett.

Originally transmitted from 5 October 1987 to 26 October 1987 on BBC1.