Much in need of a holiday, Mel and the Doctor head for Paradise Towers: a luxury man-made planet with sparkling fountains, sunny streets, exotic flowers and a shimmering blue swimming pool.

But when the TARDIS materialises in a dark, rubbish-filled, rat-infested alley it seems that this particular Paradise has turned into Hell!

Pursued by rogue cleaning machines, authoritarian caretakers and old ladies with strange eating habits, the Doctor and Mel track down the source of the chaos to one mysterious character - the designer of Paradise Towers, the Great Architect himself...

CREEPY. That's what Ace thinks of clowns. But the Doctor insists on entering the talent contest at the Psychic Circus, the self-proclaimed Greatest Show in the Galaxy, on the planet Segonax. What has reduced Segonax to an arid wasteland? Why have the happy-go-lucky circus folk stayed here so long? And why are they no longer happy? Above all, what is the dreadful truth about the "talent contests" run by the sinister Ringmaster and his robot clowns? The Doctor and Ace need all their death-defying skills in the big top to uncover a brooding, ancient evil that has broken the spirit of the Circus and demanded the sacrifice of so many lives.